Update guide.md

Author: anenadic

_extras/guide.md

@@ -3,7 +3,7 @@ title: "Instructor Notes"
 ---
 
 > ## Common Issues & Tips
-> Here is a [list of issues](../common-issues) previous 
+> Check out a [list of issues](../common-issues) previous 
 > participants of the course encountered and some tips to help you with troubleshooting and running the tools.
 {: .callout}