test: test gh action can be run manually and result shown on readme badge

Author: gitcommitshow

.github/workflows/test.yml

@@ -4,6 +4,7 @@
 name: npm test
 
 on:
+  workflow_dispatch:
   push:
     branches: [ "main" ]
   pull_request:

README.md

@@ -1,6 +1,8 @@
 # open-community-kit
 Tools and stats for open-source communities
 
+![test](https://github.com/Invide-Labs/invide-gpt/actions/workflows/test.yml/badge.svg)
+
 # Installation
 
 ```