docs(bundlers): add webpack 1 example

[layershifter]

Ref: #524

[levithomason]

This is great!

[codecov-io]

Codecov Report

Merging #1452 into master will increase coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1452      +/-   ##
==========================================
+ Coverage   99.74%   99.74%   +<.01%     
==========================================
  Files         141      141              
  Lines        2363     2364       +1     
==========================================
+ Hits         2357     2358       +1     
  Misses          6        6

Impacted Files	Coverage Δ
src/elements/Input/Input.js	100% <0%> (ø)	✅
src/modules/Search/Search.js	100% <0%> (ø)	✅

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[layershifter]

@levithomason I need you review there, pay attention to the text added to docs. I want to add same for rollup and webpack 2 in next PRs.

[levithomason]

I've started a review here, will need to come back later to finish and submit it.

[levithomason]

I have some comments, but, I want to first get some more examples merged before cleaning up too much.