Added notes about self-hook mode

README.md

@@ -82,6 +82,14 @@ If that didn't work, refer to the _Troubleshooting_ section below.
 
 ### 🪝 Hook mode
 
+Hook mode itself has two sub-modes: Self-Hook and Hook with injector.
+
+#### 🪝 Self-Hook mode
+
+In self-hook mode SmokeAPI is injected automatically without the help of third-party injectors.
+It works best when a game doesn't have any protections against DLL injection.
+The main advantage of this mode is its minimal setup, which adds only 1 new DLL to the game folder.
+
 - Download the [latest SmokeAPI release zip].
 - From this downloaded zip extract `smoke_api32.dll` or `smoke_api64.dll`, depending on a game's bitness.
 - Rename the unzipped DLL to `version.dll` or `winhttp.dll` or `winmm.dll`.