More syntax fixes

drafts/use_cases.rst

@@ -268,6 +268,7 @@ Chat Screen
  What's visible:
   - Enough scrollback to fill a "screen full" of content.
   - Threads:
+
     - Initially will only display the timestamp and user ID of the *first*
       message. But can expand to show the entire tree.
     - Tree of messages indicating which message is a reply to which.
@@ -280,6 +281,7 @@ Chat Screen
   - Desktop/Push Notifications for messages
  What you can do:
   - Send a message in reply to another message:
+
     - Immediate local echo, may cause messages to re-order
     - Messages that haven't reached the server are queued.
     - Thread is displayed where it should be in the thread order once the
@@ -303,6 +305,7 @@ Chat Screen
       +------------+ | * A2 -> A1     | | * B2 -> B1   |
                      | * M -> A2, B2  | +--------------+
                      +----------------+
+
   - Typing notifications. Displayed within the correct thread/column.
 
  What you can do: