Fix typo

Author: rosano

.github/pull_request_template.md

@@ -6,7 +6,7 @@ Please make sure you have read [contribution guidelines](https://github.com/capr
 
 ### Most important items
 
-- Make sure to communicate your proposed changes ob our Slack channel beforehand.
+- Make sure to communicate your proposed changes on our Slack channel beforehand.
 - Large PRs (50+ lines of code) will get rejected due to increased difficulty for review - unless they have been communicated beforehand with project maintainers.
 - **Refactoring work will get rejected** unless it's been communicated with project's maintainers **beforehand**. There is a thousand ways to write the same code. Every time a code is changed, there is a potential for a new bug. We don't want to refactor the code just for the sake of refactoring.