Add fix from vuejs#1235 to fix bitbucket links.

fago · fago · commit b25f3734c95b · 2019-02-11T15:35:35.000+01:00
diff --git a/lib/default-theme/Page.vue b/lib/default-theme/Page.vue
@@ -147,6 +147,7 @@ export default {
           : repo
         return (
           base.replace(endingSlashRE, '') +
+            `/src` +
            `/${docsBranch}` +
            (docsDir ? '/' + docsDir.replace(endingSlashRE, '') : '') +
            path +
