[GitHub Action] Update docs

docs/Mod-Creation/C#-Programming/Hooking.md

@@ -6,6 +6,13 @@ For Risk of Rain 2, most of the modders in the community use MonoMod and the `MM
 
 Those `MMHOOK` files are generated through one of the MonoMod tool called [MonoMod.RuntimeDetour.HookGen](https://github.com/MonoMod/MonoMod/blob/master/README-RuntimeDetour.md#using-hookgen).
 
+Or, if you have R2Modman installed with HookGenPatcher, you can have it generated:
+- Launch the game using R2Modman ("Start modded");
+- Find the file at `%appdata%\\r2modmanPlus-local\\RiskOfRain2\\profiles\\<YOUR_PROFILE>\\BepInEx\\plugins\\MMHOOK\\MMHOOK_RoR2.dll`.
+
+(If you use the default profile, simply replace `<YOUR_PROFILE>` with `Default`.)
+
+
 Having an assembly reference to one of these `MMHOOK` files will add the `On` and `IL` namespaces into your C# project for you to use.
 
 There are two main type of hooks: