Merge commit '9b0050e9aabe4be65c78ccf292a348f309d50ccd' as 'docs'

```
git subtree add --prefix=docs/ https://github.com/gohugoio/hugoDocs.git master --squash
```

Closes #11925

docs/content/en/functions/path/Ext.md

@@ -0,0 +1,24 @@
+---
+title: path.Ext
+description: Replaces path separators with slashes (`/`) and returns the file name extension of the given path.
+categories: []
+keywords: []
+action:
+  aliases: []
+  related:
+    - functions/path/Base
+    - functions/path/BaseName
+    - functions/path/Clean
+    - functions/path/Dir
+    - functions/path/Join
+    - functions/path/Split
+  returnType: string
+  signatures: [path.Ext PATH]
+aliases: [/functions/path.ext]
+---
+
+The extension is the suffix beginning at the final dot in the final slash-separated element of path; it is empty if there is no dot.
+
+```go-html-template
+{{ path.Ext "a/b/c/news.html" }} → .html
+```