add generator to powered by, upd dev deps (#33)

9.2.15-alpha.13

```diff
-		"@11ty/eleventy": "3.0.0-alpha.10",
+		"@11ty/eleventy": "3.0.0-alpha.13",

-		"@11ty/eleventy-plugin-rss": "^1.2.0",
+		"@11ty/eleventy-plugin-rss": "^2.0.1",
```

_data/metadata.js

@@ -1,5 +1,5 @@
 let data = {
-	title: "eleventeen v9.2.14-alpha.10",
+	title: "eleventeen v9.2.15-alpha.13",
 	url: "https://eleventeen.blog",
 	language: "en",
 	description: "Rainbow Eleventy blog",
@@ -10,7 +10,7 @@ let data = {
 	},
 	siteimage: "https://o.famebot.com/file/famebot/eleventeen.png",
 	mono: false,
-	eleventeen: "9.2.14-alpha.10",
+	eleventeen: "9.2.15-alpha.13",
 };
 
 export default data;

_includes/layouts/base.njk

@@ -69,7 +69,7 @@
 					<div id="rainbutton"></div>
 					<aside id="chromagen"></aside>
 				{% endif %}
-				<aside>powered by <a title="{{ metadata.eleventeen }}" href="https://github.com/rdela/eleventeen">eleventeen</a></aside>
+				<aside>powered by <a title="eleventeen {{ metadata.eleventeen }} + {{ eleventy.generator }}" href="https://github.com/rdela/eleventeen">eleventeen</a></aside>
 			</footer>
 
 			<!-- This page `{{ page.url | htmlBaseUrl }}` was built on {% currentBuildDate %} -->			

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "eleventeen",
-	"version": "9.2.14-alpha.10",
+	"version": "9.2.15-alpha.13",
 	"description": "Starter repository for a website built with Eleventy + eleventeen",
 	"type": "module",
 	"scripts": {
@@ -39,11 +39,11 @@
 	},
 	"homepage": "https://eleventeen.blog/about/",
 	"devDependencies": {
-		"@11ty/eleventy": "3.0.0-alpha.10",
+		"@11ty/eleventy": "3.0.0-alpha.13",
 		"@11ty/eleventy-img": "^4.0.2",
 		"@11ty/eleventy-navigation": "^0.3.5",
 		"@11ty/eleventy-plugin-bundle": "^2.0.2",
-		"@11ty/eleventy-plugin-rss": "^1.2.0",
+		"@11ty/eleventy-plugin-rss": "^2.0.1",
 		"@11ty/eleventy-plugin-syntaxhighlight": "^5.0.0",
 		"@famebot/chromagen": "^1.0.1",
 		"luxon": "^3.4.4",