[3.11] gh-110631: Set three-space indents for reST in EditorConfig (GH-110635) (#110638)

gh-110631: Set three-space indents for reST in EditorConfig (GH-110635)

Set three-space indents in EditorConfig
(cherry picked from commit 66a9b10)

Co-authored-by: Hugo van Kemenade <[email protected]>

Author: miss-islington

.editorconfig

@@ -8,5 +8,8 @@ indent_style = space
 [*.{py,c,cpp,h}]
 indent_size = 4
 
+[*.rst]
+indent_size = 3
+
 [*.yml]
 indent_size = 2