diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ad8293a5..e77ffb3a 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,23 +1,30 @@
 # Contributing Guidelines
-Thank you for your contributing! My requirements are few things. Please read them.
+Thank you for your contributing! My requests are few things. Please read below.
 
 ## Issue
-Thank you for feedback. When you report a problem, please pay attention to fowllowing points.
+Thank you for feedback. When you report a problem, please pay attention to following points.
 
 ### Does it happen on web browsers? (especially Chrome)
-electron-mattermost is based on Electron. It integrates Chrome as a browser window. If the problem appears on web browsers, it may be the issue for Mattermost (or Chrome).
+electron-mattermost is based on Electron. It integrates Chrome as a browser window.
+If the problem appears on web browsers, it may be the issue for Mattermost (or Chrome).
+
+### Try "Clear Cache and Reload"
+It's available as `Ctrl(Command) + Shift + R`.
+Some layout problems are caused by browser cache.
+Especially, this kind of issue might happen when you have updated Mattermost server.
 
 ### Write detailed information
-Following points are important to understand the problem.
+Following points are very helpful to understand the problem.
 
+* How to reproduce, step-by-step
+* Expected behavior (or what is wrong)
+* Screenshots (for GUI issues)
 * electron-mattermost version
 * OS
 * Mattermost version
-* Expected behavior (or what is wrong)
-* How to reproduce, step-by-step
 
 ## Pull request
-PR is welcome.
+PR is welcome. Thank you for your great works!
 
 When you edit the code, please run `npm run prettify` before your `git commit`.
 Codes will be formatted.