Incident assigned to logged in user (#2594)

* Create ReadMe.md

* Create code.js

Author: chaytarak

Client-Side Components/UI Actions/Add Loggedin user as Incident assigned to/ReadMe.md

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+>**UI Action**
+When a new Incident record is created, user can come to incident ticket and assigned to themself. Once they click on UI Action.

Client-Side Components/UI Actions/Add Loggedin user as Incident assigned to/code.js

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+var currentUser = gs.getUserID(); //Getting loggedIn User Id
+
+//Checing wheather user is available or not in Assignee field
+if(current.assigned_to == ""){ //checking assigned to is there or not
+	current.assigned_to = currentUser; //Setting the current loggedIn user
+	current.update(); //updating the record.
+	gs.addInfoMessage("Incident has been assigned to You.");
+	action.setRedirectURL(current);
+} else {
+	gs.addErrorMessage("Incident is already assigned");
+	action.setRedirectURL(current);
+}