chore: add vuemeetups to showcase (#863)

vicmeow · ulivz · commit 2bf6bb93b809 · 2018-09-25T02:19:26.000+08:00
diff --git a/README.md b/README.md
@@ -72,6 +72,7 @@ Websites built with VuePress:
 
 * [cr-vue](https://cr-vue.mio3io.com/)
 * [vuesax](https://lusaxweb.github.io/vuesax/)
+* [vuemeetups](https://vuemeetups.org)
 
 ## Todo Features
 
