Correct link to INSTALL.md

Author: Alatius

en-US/developers.md

@@ -14,8 +14,8 @@ See the [`CONTRIBUTING.md`](https://github.com/fontforge/fontforge/blob/master/C
 
 ## Compiling From Source
 
-See the [`INSTALL-git.md`](https://github.com/fontforge/fontforge/blob/master/INSTALL-git.md) file in the source code tree
+See the [`INSTALL.md`](https://github.com/fontforge/fontforge/blob/master/INSTALL.md) file in the source code tree
 
 ## Technical Bulletins
 
-See [here](../bulletins) for more technical bulletins related to FontForge
+See [here](../bulletins) for more technical bulletins related to FontForge