Fix Iframe Size Typos

Author: irazasyed

src/plugin.js

@@ -12,11 +12,11 @@ require(['gitbook'], function (gitbook) {
         size,
         count
         }) {
-        var width = size === "large" ? "170px" : "160xp";
-        var height = size === "large" ? "30" : "20xp";
+        var width = size === "large" ? "170" : "160";
+        var height = size === "large" ? "30" : "20";
         var extraParam = type === "watch" ? "&v=2" : "";
         return `<a class="btn pull-right" aria-label="github">
-        <iframe style="display:inline-block;vertical-align:middle;" src="https://ghbtns.com/github-btn.html?user=${user}&repo=${repo}&type=${type}&count=${count}&size=${size}${extraParam}" frameborder="0" scrolling="0" width="${width}" height="${height}"></iframe>
+        <iframe style="display:inline-block;vertical-align:middle;" src="https://ghbtns.com/github-btn.html?user=${user}&repo=${repo}&type=${type}&count=${count}&size=${size}${extraParam}" frameborder="0" scrolling="0" width="${width}px" height="${height}px"></iframe>
         </a>`;
     }