added install docs for plugins

Docs/Installation.md

@@ -133,7 +133,7 @@ p2prc --ls
 p2prc --ni
 ```
 
-### Using Plugins 
+# Using Plugins 
 This feature is still Under Development 
 
 #### Dependencies
@@ -147,5 +147,17 @@ This feature is still Under Development
     ever the file ```ansible.cfg``` is located.
   -  Add or uncomment ```host_key_checking = False```
   
+#### Run Test Cases 
+- Generate Test Case Ansible file 
+  - ```make testcases```
+- Enter inside plugin directory and run tests. 
+  Note: That docker needs to installed and needs to run without 
+  sudo. Refer the section install Docker. 
+  - ```cd plugin```
+  - ```go test .```
+  
+
+  
+