Update documentation.

mini_al.h

@@ -490,7 +490,19 @@ struct mal_device
 // is stored in the mal_device structure.
 //
 // <backends> is used to allow the application to prioritize backends depending on it's specific
-// requirements. This can be null in which case it uses the default priority.
+// requirements. This can be null in which case it uses the default priority, which is as follows:
+//   - WASAPI
+//   - DirectSound
+//   - ALSA
+//   - OpenSL|ES
+//   - Null
+//
+// Return Value:
+//   - MAL_SUCCESS if successful.
+//   - MAL_INVALID_ARGS
+//       One or more of the input arguments is invalid.
+//   - MAL_NO_BACKEND
+//       There is no supported backend, or there was an error loading it (such as a missing dll/so).
 //
 // Thread Safety: UNSAFE
 //
@@ -502,6 +514,13 @@ mal_result mal_context_init(mal_backend backends[], mal_uint32 backendCount, mal
 //
 // Results are undefined if you call this while a related is still active.
 //
+// Return Value:
+//   - MAL_SUCCESS if successful.
+//   - MAL_INVALID_ARGS
+//       One or more of the input arguments is invalid.
+//   - MAL_NO_BACKEND
+//       The device has an unknown backend. This probably means the context of <pContext> has been trashed.
+//
 // Thread Safety: UNSAFE
 //
 // Efficiency: LOW
@@ -4228,6 +4247,7 @@ mal_result mal_context_uninit(mal_context* pContext)
         default: break;
     }
 
+    mal_assert(false);
     return MAL_NO_BACKEND;
 }