Clean up the main readme file and split some parts out

This groups development, daemon and lib parts together much better

lib/README.md

@@ -0,0 +1,43 @@
+## libgamemode
+
+**libgamemode** is an internal library used to dispatch requests to the daemon. Note: `libgamemode` should never be linked with directly.
+
+**libgamemodeauto** is a simple dynamic library that automatically requests game mode when loaded. Useful to `LD_PRELOAD` into any game as needed.
+
+**gamemode\_client.h** is as single header lib that lets a game request game mode and handle errors.
+
+### Integration
+Developers can integrate the request directly into an app. Note that none of these client methods force your users to have the daemon installed or running - they will safely no-op if the host is missing.
+
+```C
+// Manually with error checking
+#include "gamemode_client.h"
+
+	if( gamemode_request_start() < 0 ) {
+		fprintf( stderr, "gamemode request failed: %s\n", gamemode_error_string() );
+	}
+
+	/* run game... */
+
+	gamemode_request_end(); // Not required, gamemoded can clean up after game exits
+```
+
+```C
+// Automatically on program start and finish
+#define GAMEMODE_AUTO
+#include "gamemode_client.h"
+```
+
+Or, distribute `libgamemodeauto.so` and either add `-lgamemodeauto` to your linker arguments, or add it to an LD\_PRELOAD in a launch script.
+
+### Supervisor support
+Developers can also create apps that manage GameMode on the system, for other processes:
+
+```C
+#include "gamemode_client.h"
+
+	gamemode_request_start_for(gamePID);
+	gamemode_request_end_for(gamePID);
+```
+
+This functionality can also be controlled in the config file in the `supervisor` section.