Remove link to contributions log

Author: jc00ke

index.md

@@ -59,8 +59,7 @@ There are many ways to participate in **pdxruby**:
     to discuss topics of interest to those new to Ruby or programming.
     This is a super friendly list that wants to help you learn and share
     information with others.
--   [Join our Meetup](http://www.meetup.com/Portland-Ruby-Brigade/)
-    group. ([contribution log](/contributions))
+-   [Join our Meetup](http://www.meetup.com/Portland-Ruby-Brigade/) group.
 -   [Chat with us on IRC: "\#pdxruby"](irc://irc.freenode.net/#pdxruby)
 -   [Chat with us on Slack](https://pdxruby.slack.com)
 -   [Watch videos of past meetings on YouTube](https://www.youtube.com/channel/UCgEEluMvb1Fp3FExqh-YZmw)