Update contributing.md

This has moved to an organisation now! 📉

Author: Luke Sheard

contributing.md

@@ -2,6 +2,6 @@
 
 ## Local setup
 
-1. Clone the repository with `git clone git@github.com:mxstbr/micro-analytics.git`
+1. Clone the repository with `git clone git@github.com:micro-analytics/micro-analytics.git`
 2. Install the dependencies with `npm install` (or `yarn install` if you have `yarn`)
 3. Run the server in dev mode with `npm run dev`, which will restart the server everytime you edit the code.