Change hint re update site to Mastodon-Tomancak

README.md

@@ -17,7 +17,7 @@ Please don't confuse it for the social network called Mastodon.)
 ## Installation
 
 1. Install [Fiji](https://imagej.net/downloads) and [Blender](https://blender.org/download) on your computer. Make sure to install Blender as a "portable" installation. 
-2. Next step is to [activate](https://imagej.net/update-sites/following) the "TomancakLab" update site in Fiji.
+2. Next step is to [activate](https://imagej.net/update-sites/following) the "Mastodon-Tomancak" update site in Fiji.
 3. In Mastodon's main menu, you will find an entry ```Plugins > Setup Blender Addon ...```, click it and follow the instructions. 
 
 That's it, the Mastodon Blender View is ready to be used. Simply click: ```Window > New Blender Window```.