Update README.md

README.md

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 # KF2-Ranked-Patch
+
+# Description
+Makes kf2 server ranked  
+
+# Dependencies
+- any GNU/Linux OS
+- dd, readelf, hexdump
+- kf2 server
+
+# Usage
+- install dependencies (dd, readelf, hexdump) using your OS's package manager
+- copy [kf2-ranked-patch](kf2-ranked-patch) to your server
+- make it executable: `chmod +x kf2-ranked-patch`
+- run it like this: `./kf2-ranked-patch <path_to_KFGameSteamServer.bin.x86_64>`
+
+# Enable auto-patching
+If you are using [KF2-SRV](https://github.com/GenZmeY/KF2-SRV) then copy [kf2-ranked-patch](kf2-ranked-patch) to `/usr/share/kf2-srv/patch/` so that the server will automatically apply the patch after each update  
+
+# Notes
+- need to patch `KFGameSteamServer.bin.x86_64` after every KF2 update