Merge commit '9b0050e9aabe4be65c78ccf292a348f309d50ccd' as 'docs'

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

Closes #11925

docs/.editorconfig

@@ -0,0 +1,20 @@
+# https://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 2
+indent_style = space
+trim_trailing_whitespace = true
+
+[*.go]
+indent_size = 8
+indent_style = tab
+
+[*.js]
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false