Some style fixes

Author: HardNorth

CONTRIBUTING.md

@@ -128,9 +128,9 @@ Here is a simple overview below:
     ```
 
 9. Finally, submit a pull request through the GitHub website using this data:
-
-    head-fork: YOUR_GITHUB_USERNAME/agent-Python-RobotFramework  
+   
+    head-fork: YOUR_GITHUB_USERNAME/agent-Python-RobotFramework
     compare: your-branch-name
 
-    base-fork: reportportal/agent-Python-RobotFramework  
+    base-fork: reportportal/agent-Python-RobotFramework
     base: master