added option to customise repoLabel

Author: ycmjason

docs/default-theme-config/README.md

@@ -216,7 +216,7 @@ next: false
 ---
 ```
 
-## GitHub Repo and Edit Links
+## Git Repo and Edit Links
 
 Providing `themeConfig.repo` auto generates a GitHub link in the navbar and "Edit this page" links at the bottom of each page.
 
@@ -226,6 +226,8 @@ module.exports = {
   themeConfig: {
     // Assumes GitHub. Can also be a full GitLab url.
     repo: 'vuejs/vuepress',
+    // Customising the header label
+    repoLabel: 'Contribute!',
     // if your docs are not at the root of the repo
     docsDir: 'docs',
     // optional, defaults to master

lib/default-theme/NavLinks.vue

@@ -78,6 +78,8 @@ export default {
       }
     },
     repoLabel () {
+      if (this.$site.themeConfig.repoLabel) return this.$site.themeConfig.repoLabel
+
       const repoHost = this.repoLink.match(/^https?:\/\/[^/]+/)[0] || 'github'
       return ['GitHub', 'GitLab', 'Bitbucket'].find(platform => {
         return repoHost.toLowerCase().includes(platform.toLowerCase())