Some clean up;

Author: jerone

Github_Comment_Enhancer/Github_Comment_Enhancer.user.js

@@ -540,7 +540,7 @@
 	}
 
 	function isGist() {
-		return location.host === "gist.github.com";
+		return "gist.github.com" === location.host;
 	}
 
 	function overrideGollumMarkdown() {
@@ -726,6 +726,24 @@
 		});
 	}
 
+	function addSponsorLink(commentForm){
+		var tabnavExtras = commentForm.parentNode.parentNode.querySelector(".comment-form-head .tabnav-right, .comment-form-head .right");
+		if (tabnavExtras) {
+			var elem = commentForm;
+			while ((elem = elem.parentNode) && elem.nodeType !== 9 && !elem.classList.contains("timeline-inline-comments")) {}
+			var sponsoredText = elem !== document ? " Github Comment Enhancer" : " Enhanced by Github Comment Enhancer";
+			var sponsored = document.createElement("a");
+			sponsored.setAttribute("target", "_blank");
+			sponsored.setAttribute("href", "https://github.com/jerone/UserScripts/tree/master/Github_Comment_Enhancer#readme");
+			sponsored.classList.add("tabnav-widget", "text", "tabnav-extras", "tabnav-extra");
+			var sponsoredIcon = document.createElement("span");
+			sponsoredIcon.classList.add("octicon", "octicon-question");
+			sponsored.appendChild(sponsoredIcon);
+			sponsored.appendChild(document.createTextNode(sponsoredText));
+			tabnavExtras.insertBefore(sponsored, tabnavExtras.firstElementChild);
+		}
+	}
+
 	function commentFormKeyEvent(commentForm, e) {
 		var keys = [];
 		if (e.altKey) {
@@ -811,21 +829,7 @@
 
 				addCodeSyntax(commentForm);
 
-				var tabnavExtras = commentForm.parentNode.parentNode.querySelector(".comment-form-head .tabnav-right, .comment-form-head .right");
-				if (tabnavExtras) {
-					var elem = commentForm;
-					while ((elem = elem.parentNode) && elem.nodeType !== 9 && !elem.classList.contains("timeline-inline-comments")) {}
-					var sponsoredText = elem !== document ? " Github Comment Enhancer" : " Enhanced by Github Comment Enhancer";
-					var sponsored = document.createElement("a");
-					sponsored.setAttribute("target", "_blank");
-					sponsored.setAttribute("href", "https://github.com/jerone/UserScripts/tree/master/Github_Comment_Enhancer");
-					sponsored.classList.add("tabnav-widget", "text", "tabnav-extras", "tabnav-extra");
-					var sponsoredIcon = document.createElement("span");
-					sponsoredIcon.classList.add("octicon", "octicon-question");
-					sponsored.appendChild(sponsoredIcon);
-					sponsored.appendChild(document.createTextNode(sponsoredText));
-					tabnavExtras.insertBefore(sponsored, tabnavExtras.firstElementChild);
-				}
+				addSponsorLink(commentForm);
 			}
 
 			Array.prototype.forEach.call(gollumEditor.parentNode.querySelectorAll(".function-button"), function(button) {