Update roundtable.md formatting fix

Author: cottage14

content/pages/roundtable.md

@@ -11,15 +11,13 @@ During the roundtable, people can either **speak or type** their comments. If yo
 
 ### To join the roundtable
 
-**If you have an ASF email address** In The ASF workspace on Slack, select the `#asfinfra` channel. When you are in that channel, enter this command:
+**If you have an ASF email address**: In The ASF workspace on Slack, select the `#asfinfra` channel. When you are in that channel, enter this command:
 
 `/qbot addme roundtable`
 
 (qbot is an Infra tool to simplify actions within the ASF Slack workspace.)
 
-**Otherwise**
-
-Contact Infra by email at `[email protected]` and ask to be added to the Roundtable channel. In your email, please indicate your connection to The ASF or one of its projects or podlings.
+**Otherwise**: Contact Infra by email at `[email protected]` and ask to be added to the Roundtable channel. In your email, please indicate your connection to The ASF or one of its projects or podlings.
 
 ### Once you have joined #roundtable ###