Make it valid RST

drafts/human-id-rules.rst

@@ -98,7 +98,7 @@ Room aliases cannot be rewritten as punycode and sent to the HS the alias is
 referring to as the HS will not necessarily understand the rewritten alias.
 
 Other rejected solutions for failed checks
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+------------------------------------------
 - Additional key: Informational key on the event attached by HS to say "unsafe
   ID". Problem: clients can just ignore it, and since it will appear only very
   rarely, easy to forget when implementing clients.
@@ -123,4 +123,3 @@ The capitalisation rules outlined above are nice but do not fully resolve issues
 where ``@alice:example.com`` tries to speak with ``@bob:domain.com`` using
 ``@Bob:domain.com``. It is up to ``domain.com`` to map ``Bob`` to ``bob`` in
 a sensible way.
-