Auto update markdown TOC

Author: george-gca

INSTALL.md

@@ -15,7 +15,7 @@
     - [For project pages](#for-project-pages)
     - [Enabling automatic deployment](#enabling-automatic-deployment)
     - [Manual deployment to GitHub Pages](#manual-deployment-to-github-pages)
-    - [Deploy on Netlify](#deploy-on-netlify)
+    - [Deploy on <a href="https://www.netlify.com/" rel="nofollow">Netlify</a>](https://www.netlify.com/)
     - [Deployment to another hosting server (non GitHub Pages)](#deployment-to-another-hosting-server-non-github-pages)
     - [Deployment to a separate repository (advanced users only)](#deployment-to-a-separate-repository-advanced-users-only)
   - [Upgrading from a previous version](#upgrading-from-a-previous-version)