fix a load of spacing issues in frontend content (#9281)

services/github/github-hacktoberfest.service.js

@@ -10,31 +10,24 @@ import {
 } from './github-helpers.js'
 
 const documentation = `
-  <p>
-    This badge is designed for projects hosted on GitHub which are
-    participating in
-    <a href="https://hacktoberfest.digitalocean.com">Hacktoberfest</a>,
-    an initiative to encourage participating in open-source projects. The
-    badge can be added to the project readme to encourage potential
-    contributors to review the suggested issues and to celebrate the
-    contributions that have already been made.
-    The badge displays three pieces of information:
-    <ul>
-      <li>
-        The number of suggested issues. By default this will count open
-        issues with the <strong>hacktoberfest</strong> label, however you
-        can pick a different label (e.g.
-        <code>?suggestion_label=good%20first%20issue</code>).
-      </li>
-      <li>
-        The number of pull requests opened in October. This excludes any
-        PR with the <strong>invalid</strong> label.
-      </li>
-      <li>The number of days left of October.</li>
-    </ul>
-  </p>
+This badge is designed for projects hosted on GitHub which are
+participating in
+[Hacktoberfest](https://hacktoberfest.digitalocean.com),
+an initiative to encourage participating in open-source projects. The
+badge can be added to the project readme to encourage potential
+contributors to review the suggested issues and to celebrate the
+contributions that have already been made.
+The badge displays three pieces of information:
 
-  ${githubDocumentation}
+- The number of suggested issues. By default this will count open
+  issues with the <strong>hacktoberfest</strong> label, however you
+  can pick a different label (e.g.
+  \`?suggestion_label=good%20first%20issue\`).
+- The number of pull requests opened in October. This excludes any
+  PR with the <strong>invalid</strong> label.
+- The number of days left of October.
+
+${githubDocumentation}
 `
 
 const schema = Joi.object({