Added brackets to help page.

rtv/docs.py

@@ -17,7 +17,7 @@ Press `?` to open the help screen.
 """
 
 HELP = """
-Basic Commands
+[Basic Commands]
   `j/k` or `UP/DOWN`  : Move the cursor up/down
   `m/n` or `PgUp/PgDn`: Jump to the previous/next page
   `o` or `ENTER`      : Open the selected item as a webpage
@@ -27,7 +27,7 @@ Basic Commands
   `?`                 : Show the help screen
   `q/Q`               : Quit/Force quit
 
-Authenticated Commands
+[Authenticated Commands]
   `a/z`               : Upvote/downvote
   `c`                 : Compose a new post or comment
   `e`                 : Edit an existing post or comment
@@ -35,12 +35,12 @@ Authenticated Commands
   `i`                 : Display new messages prompt
   `s`                 : Open/close subscribed subreddits list
 
-Subreddit Mode
+[Subreddit Mode]
   `l` or `RIGHT`      : Enter the selected submission
   `/`                 : Open a prompt to switch subreddits
   `f`                 : Open a prompt to search the current subreddit
 
-Submission Mode
+[Submission Mode]
   `h` or `LEFT`       : Return to subreddit mode
   `l` or `RIGHT`      : Open the selected comment in a new window
   `SPACE`             : Fold the selected comment, or load additional comments