fix install link in README.md to point to same-repo file

Author: brookgagnon

README.md

@@ -8,7 +8,7 @@ One OBServer may manage one or more OBPlayers in a synchronized network configur
 
 To install OBServer, you should have a basic understanding of the Linux shell terminal. Once installed, every aspect of your station is managed via OBServer's web interface.
 
-Follow our [Install instructions](https://github.com/openbroadcaster/observer/blob/5.3/INSTALL.md) and Post Installation [Troubleshooting guide](https://support.openbroadcaster.com/troubleshooting#post-installation-observer-troubleshooting) for instructions on how to install OpenBroadcaster on your own server.
+Follow our [Install instructions](INSTALL.md) and Post Installation [Troubleshooting guide](https://support.openbroadcaster.com/troubleshooting#post-installation-observer-troubleshooting) for instructions on how to install OpenBroadcaster on your own server.
 
 ## Support