Update feature_request.md

Author: benhatsor

.github/ISSUE_TEMPLATE/feature_request.md

@@ -8,7 +8,7 @@ assignees: ''
 ---
 
 **Motivation**
-Please explain the problem you're having/why you propose this feature. Ex. I'm always frustrated when [...]
+Please explain the problem you're having/why you propose this feature. Eg. I'm always frustrated when [...]
 
 **Description**
 A clear and concise description of what you want to happen.