Update contact.md

Author: viraji

contact.md

@@ -1,6 +1,6 @@
 # Contact us
 
-### Email Lists
+### Email lists
 Email lists are our primary form of communication. How to join and archives are linked from:
 
 * [Main list](https://thegooddocsproject.groups.io/g/main): Development discussion.
@@ -22,19 +22,19 @@ The main channels are:
 * #general: General development discussion
 * #random: Non-work-related stuff
 
-### Real-Time Conference Calls
+### Real-time conference calls
 
 As of 2019/2020 we have been holding weekly half-hour video conference calls. The timeslot often changes. Reach out to us to get an invitation. All interested in contributing are welcome.
 
-### Weekly Meeting Minutes
+### Weekly meeting minutes
 
 Minutes from our weekly meetings can be accessed from [here](https://github.com/thegooddocsproject/governance/wiki/Weekly-Meetings). 
 
-### Code of Conduct
+### Code of conduct
 
 We are nice to each other, in line with our [Code of Conduct](https://github.com/thegooddocsproject/governance/blob/master/CodeOfConduct.md).
 
-### Who are We?
+### Who are we?
 
 We are a bunch of technical writers, educators, product developers and power users who also write. Some of us have big titles in large organisations; others don’t. We are committed to helping others write great documentation through this project.