Link to properly rendered markdown

README.md

@@ -55,9 +55,9 @@ Make sure you install [Prerequirements](http://gogs.io/docs/installation/) first
 
 There are 5 ways to install Gogs:
 
-- [Install from binary](http://gogs.io/docs/installation/install_from_binary.md): **STRONGLY RECOMMENDED**
-- [Install from source](http://gogs.io/docs/installation/install_from_source.md)
-- [Install from packages](http://gogs.io/docs/installation/install_from_packages.md)
+- [Install from binary](http://gogs.io/docs/installation/install_from_binary.html): **STRONGLY RECOMMENDED**
+- [Install from source](http://gogs.io/docs/installation/install_from_source.html)
+- [Install from packages](http://gogs.io/docs/installation/install_from_packages.html)
 - [Ship with Docker](https://github.com/gogits/gogs/tree/master/dockerfiles)
 - [Install with Vagrant](https://github.com/geerlingguy/ansible-vagrant-examples/tree/master/gogs)