WIP: Add tests for spelling

[bkeepers]

This adds retext-spell to check for spelling. There are currently 200 warnings, mostly from:

• Ignore @mentions (Hack support for @mentions retextjs/retext-spell#7)
• Ignore blockquotes
• Ignore acronyms
• Add local dictionary of tech words (php, Wordpress, Node.js, Django)

[orta]

Nice tooling - we use Danger to offer this kind of feedback inline on my work blog e.g. artsy/artsy.github.io#255

[bkeepers]

Danger looks awesome.

I stumbled on remark-lint a few weeks ago and was impressed. It's really powerful and configurable, but it's a little involved due to everything operating on a syntax tree (as opposed to using regular expressions).

I don't have a strong preference for tooling, as long as we have thorough tests for the things we care about.

[bkeepers]

Auto closed when gh-pages branch was deleted in #174

[bkeepers]

@wooorm I was looking at reviving this PR, but there are a ton of really simple words being marked as misspelt. Any idea what is up? Here is just a sampling of the 2961 warnings:

                                                                                                                            retext-spell  retext-spell
    86:120-86:125  warning  `hears` is misspelt                                                                                                                                                                                                                                           retext-spell  retext-spell
    86:138-86:148  warning  `maintainer` is misspelt                                                                                                                                                                                                                                      retext-spell  retext-spell
    86:164-86:175  warning  `discouraged` is misspelt                                                                                                                                                                                                                                     retext-spell  retext-spell
    86:188-86:196  warning  `Research` is misspelt                                                                                                                                                                                                                                        retext-spell  retext-spell
    86:326-86:334  warning  `suggests` is misspelt; did you mean `suggest`?                                                                                                                                                                                                               retext-spell  retext-spell
    86:340-86:350  warning  `maintainer` is misspelt                                                                                                                                                                                                                                      retext-spell  retext-spell
    86:366-86:368  warning  `is` is misspelt; did you mean `id`, `ix`, `s`, `isl`, `ism`, `iv`, `if`, `Io`, `it`, `Ir`, `in`, `Ia`, `ii`, `i`, `PS`, `Ms`, `dis`, `Os`, `As`, `sis`, `SI`, `SS`, `NS`, `US`, `HS`, `BS`, `KS`, `WIS`, `XS`, `IE`, `ISS`, `INS`, `IRS`, `IL`, `IP`, `IQ`?  retext-spell  retext-spell
    86:409-86:422  warning  `contributions` is misspelt                                                                                                                                                                                                                                   retext-spell  retext-spell
      88:10-88:18  warning  `tracking` is misspelt                                                                                                                                                                                                                                        retext-spell  retext-spell
      88:31-88:36  warning  `takes` is misspelt                                                                                                                                                                                                                                           retext-spell  retext-spell
      88:57-88:67  warning  `maintainer` is misspelt                                                                                                                                                                                                                                      retext-spell  retext-spell
      88:83-88:96  warning  `contributions` is misspelt                                                                                                                                                                                                                                   retext-spell  retext-spell
    88:134-88:144  warning  `Responding` is misspelt                                                                                                                                                                                                                                      retext-spell  retext-spell
    88:186-88:188  warning  `as` is misspelt                                                                                                                                                                                                                                              retext-spell  retext-spell
    88:196-88:198  warning  `as` is misspelt                                                                                                                                                                                                                                              retext-spell  retext-spell
    88:209-88:215  warning  `Thanks` is misspelt                                                                                                                                                                                                                                          retext-spell  retext-spell
    88:242-88:248  warning  `review` is misspelt                                                                                                                                                                                                                                          retext-spell  retext-spell
      90:36-90:41  warning  `takes` is misspelt                                                                                                                                                                                                                                           retext-spell  retext-spell
      90:58-90:64  warning  `stages` is misspelt                                                                                                                                                                                                                                          retext-spell  retext-spell
     90:99-90:101  warning  `as` is misspelt                                                                                                                                                                                                                                              retext-spell  retext-spell
    90:134-90:141  warning  `remains` is misspelt                                                                                                                  

[wooorm]

Really weird. I just checked and it seems to be something wrong with the en-us dictionary: en-gb works fine!

[wooorm]

Found it. The American-English dictionary contains lots of white-space between columns, whereas other dictionaries use one space. I’ll push a fix to nspell (underlying checker) in a minute.

[wooorm]

OK, working now. Make sure when updating you the newer nspell is included though.
Also, pushed a commit to pin the retext-spell module as it’s now working and published to npm.

[nayafia]

@bkeepers still want to merge this?

[sotayamashita]

In Node.js, we use misspell but it is not part of a test. Here is the PR. nodejs/nodejs.org#1130

[bkeepers]

Thanks for the suggestion @sotayamashita. This project already depends on Ruby and Node. I'm not sure I want to add a Go dependency. I'll look into it, but no promises.

[bkeepers]

I'd still love to add this, but closing this since I'm not actively working on this.

[nayafia]

This was addressed by #431 🎉