docs: rename Patch boot.img manually to magiskboot in installation table

docs/installation.md

@@ -8,7 +8,7 @@ Choose the method that fits your situation:
 | Method | When to use | Requires root | Guide |
 |--------|-------------|---------------|-------|
 | **Kernel Flasher** | Upgrading with root already available, no PC needed | Yes | [kernelflasher.md](kernelflasher.md) |
-| **Patch boot.img manually** | Pixel / `lz4_legacy` or non-standard `boot.img` that won't boot directly | No | [magiskboot.md](magiskboot.md) |
+| **magiskboot** | Pixel / `lz4_legacy` or non-standard `boot.img` that won't boot directly | No | [magiskboot.md](magiskboot.md) |
 
 ## Choosing the correct AnyKernel3 ZIP