content: Replace inline URLs with autolinks

.markdownlint-cli2.yaml

@@ -77,7 +77,7 @@ config:
     full: true
     inline: true
     shortcut: true
-    url_inline: true
+    url_inline: false
   MD055:
     style: consistent
   MD056: true

content/en/hugo-modules/introduction.md

@@ -12,8 +12,8 @@ Modules are combinable in any arrangement, and external directories (including t
 
 Some example projects:
 
-[https://github.com/bep/docuapi](https://github.com/bep/docuapi)
+<https://github.com/bep/docuapi>
 : A theme that has been ported to Hugo Modules while testing this feature. It is a good example of a non-Hugo-project mounted into Hugo's directory structure. It even shows a JS Bundler implementation in regular Go templates.
 
-[https://github.com/bep/my-modular-site](https://github.com/bep/my-modular-site)
+<https://github.com/bep/my-modular-site>
 : A simple site used for testing.