add gitpod

.gitpod.yml

@@ -0,0 +1,9 @@
+# This configuration file was automatically generated by Gitpod.
+# Please adjust to your needs (see https://www.gitpod.io/docs/config-gitpod-file)
+# and commit this file to your remote git repository to share the goodness with others.
+
+tasks:
+  - init: npm install && npm run build
+    command: npm run dev
+
+