Added indentation to codeblock to format correctly

Author: sarmadgulzar

docs/installation.rst

@@ -134,18 +134,20 @@ file.
 
  If not set, the default value of this setting is::
 
- {
- "theme": "silver",
- "height": 500,
- "menubar": False,
- "plugins": "advlist,autolink,lists,link,image,charmap,print,preview,anchor,"
- "searchreplace,visualblocks,code,fullscreen,insertdatetime,media,table,paste,"
- "code,help,wordcount",
- "toolbar": "undo redo | formatselect | "
- "bold italic backcolor | alignleft aligncenter "
- "alignright alignjustify | bullist numlist outdent indent | "
- "removeformat | help",
- }
+
+ {
+ "theme": "silver",
+ "height": 500,
+ "menubar": False,
+ "plugins": "advlist,autolink,lists,link,image,charmap,print,preview,anchor,"
+ "searchreplace,visualblocks,code,fullscreen,insertdatetime,media,table,paste,"
+ "code,help,wordcount",
+ "toolbar": "undo redo | formatselect | "
+ "bold italic backcolor | alignleft aligncenter "
+ "alignright alignjustify | bullist numlist outdent indent | "
+ "removeformat | help",
+ }
+
 
 ``TINYMCE_SPELLCHECKER`` (default: ``False``)
  Whether to use the spell checker through the supplied view. You must add