add badge image to home page

Author: mitiemann

_css/custom.css

@@ -114,3 +114,10 @@ recognized as Ruby code. Since we don't have any Ruby code in MJW, this is a qui
 TODO: remove when not required in Xranklin.
 */
 .language-ruby::before {content: "Julia";}
+
+/* Custom CSS required to display the docs|stable badge on the landing page */
+img[alt=badge] {
+  height: 1em;
+  width: auto;
+  display: inline;
+}

index.md

@@ -33,4 +33,4 @@ But at least you will know where to look in case you have a specific question.
 
 Many of the links you will see point to [GitHub](https://github.com/) repositories for Julia packages.
 When you click them, they will take you to a page called `README.md` that contains a brief description of the package, sometimes insufficient for actual use.
-You can usually find more thorough documentation by looking for a blue badge called [`docs|stable`](https://img.shields.io/badge/docs-stable-blue.svg) at the top of the page.
+You can usually find more thorough documentation by clicking on a blue badge called `docs|stable` looking like this ![badge](https://img.shields.io/badge/docs-stable-blue.svg) at the top of the `README`.