Created Library Locations (markdown)

Library-Locations.md

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+Generally speaking the native dlls (steam_api.dll, steam_api64.dll, libsteam_api.dylib etc) need to be next to the application's exe. 
+
+# Development
+
+When you're developing the appropriate dll needs to be somewhere your game/editor can find them. If you're using Unity they need to be in your project root. Be careful that they match with the dlls we provide in the release zip - if they don't you'll probably crash.
+
+![Rust Development Example](https://files.facepunch.com/garry/2017/07/08/93e03fee.png)
+
+# Rust Example
+
+We ship Rust on Windows32, Windows64, Osx and Linux. Here's where we copy the libraries, where Rust/ is the location of Rust.exe/Rust.app/Rust
+
+![Rust Development Example](https://files.facepunch.com/garry/2017/07/08/b9577971.png)
+
+
+| Platform  | File, Location |
+| ------------- | ------------- |
+| Windows (32bit)  | Rust/steam_api.dll  |
+| Windows (64bit)  | Rust/steam_api64.dll  |
+| Osx (64bit)  | Rust/libsteam_api.dylib  |
+| Linux (64bit)  | Rust/libsteam_api64.so  |
+
+## Dedicated Server
+
+The dedicated server is a bit different. It can run without Steam so we need to ship a few more dlls alongside it.
+
+| Platform  | File, Location |
+| ------------- | ------------- |
+| Windows (64bitbit)  | Rust/steam_api64.dll  |
+|   | Rust/steamclient64.dll  |
+|   | Rust/tier0_s64.dll  |
+|   | Rust/vstdlib_s64.dll  |
+
+Technically when you ship a dedicated server you're meant to include appid 1007 - which includes these dlls already (something you need to talk to Valve about I think). But we play it safe by including dlls we know will always work - so we don't run the risk of appid 1007 updating and breaking our server.
+
+We grab these dlls using [steamcmd](https://developer.valvesoftware.com/wiki/SteamCMD), using these scripts. Osx doesn't seem to be able to run dedicated servers.
+
+### Windows
+```
+@ShutdownOnFailedCommand 1
+@NoPromptForPassword 1
+@sSteamCmdForcePlatformType windows
+login anonymous
+force_install_dir ../sdk_win
+app_update 1007 validate
+quit
+```
+
+### Linux
+```
+@ShutdownOnFailedCommand 1
+@NoPromptForPassword 1
+@sSteamCmdForcePlatformType linux
+login anonymous
+force_install_dir ../sdk_lin
+app_update 1007 validate
+quit
+```
+
+### Bat File
+```
+"SteamCmd.exe" +runscript ../sdk_win.txt
+"SteamCmd.exe" +runscript ../sdk_osx.txt
+```