feat: Add rule to create more descriptive link texts

The more descriptive your link text, the easier it is for people to navigate
your site and for Google to understand what you are linking to.

Practically, this means you should avoid link text like `here`, `this page`, or
`read more`.

Coop/styles/Coop/MeaningfulLinkWords.yml

@@ -0,0 +1,10 @@
+extends: existence
+message: "**Error**: Rewrite the link text for `%s` to be more descriptive."
+level: error
+ignorecase: true
+scope: raw
+nonword: true
+tokens:
+  - \[here\]\(.*\)
+  - \[this page\]\(.*\)
+  - \[read more\]\(.*\)