Fix typo in link

Author: dannyadair

bylaws/event_organisers/README.md

@@ -7,7 +7,7 @@ by three documents:
 
 - [Python New Zealand and Event Organisers](event_organisers.md) - outlines aspirations,
   expectations, responsibilities and commitments
-- [Event Organiser Commitment](commmitment.md) - a form signed by event organisers to
+- [Event Organiser Commitment](commitment.md) - a form signed by event organisers to
   confirm their commitment
 - [HOWTO Python New Zealand Events](howto_events.md) - describes "how we currently do
   things"