Add prequisites to readme

Author: qzed

README.md

@@ -26,6 +26,10 @@ See `surface <subcommand> help` for more details.
 
 _Hint:_ You can specify the subcommand by any unabiguous prefix of it, i.e. `surface perf` and `surface p` will both evaluate to `surface performance`.
 
+## Prequisites
+
+For this tool to work, you need a recent version of the [surface-acpi module][surface-acpi] e.g. via [Jake's kernel][surface-kernel] (for `latch` and `performance` sub-commands) and the [dGPU hot plug module][surface-shps] (for the `dgpu` sub-command).
+
 ## Installing
 
 Have a look at the [releases](https://github.com/qzed/linux-surface-control/releases) page.
@@ -50,3 +54,7 @@ env CARGO_TARGET_DIR=target CARGO_INCREMENTAL=0 cargo deb
 where setting `CARGO_TARGET_DIR` is required to output the generated auto-completion files at the correct location for cargo-deb to pick up.
 
 The final package can be found in `target/debian`.
+
+[surface-acpi]: https://github.com/qzed/linux-surfacegen5-acpi
+[surface-kernel]: https://github.com/jakeday/linux-surface
+[surface-shps]: https://github.com/qzed/linux-surfacebook2-mshw0153