Update build instructions and fix protobuf java package

Author: Erimelowo

.gitignore

@@ -29,3 +29,4 @@ vcpkg_installed/
 # Project-specific
 build/*
 out/
+/.vscode

README.md

@@ -46,8 +46,18 @@ Run the bootstrap script to build vcpkg binary `.\vcpkg\bootstrap-vcpkg.bat` or
 
 After installing vcpkg if you're on Windows, you need to run `vcpkg integrate install` command from the vcpkg folder to integrate it for VSCode.
 
-For other systems and IDEs instructions are not available as of now, contributions are welcome.
+Then you will need to run `cmake -B build` once to setup CMake.
+
+Finally, everytime you want to build binaries, just run `cmake --build build --config Release`. The newly built binary will be in the build/release directory.
+
+For other systems and IDEs, instructions are not available as of now, but contributions are welcome.
 
 ### Updating vcpkg packages
 
-To update vcpkg packages set the vcpkg registry submodule to a newer commit and rerun the bootstrap script.
+To update vcpkg packages set the vcpkg registry submodule to a newer commit and rerun the bootstrap script.
+
+### Updating protobuf messages
+
+You can modify the protobuf messages for communication between the server and this driver at [src\bridge\ProtobufMessages.proto](src\bridge\ProtobufMessages.proto)
+
+To update the protobuf messages on the server, you will need to install [protoc](https://protobuf.dev/installation/) (we use version 4.31.1), then make sure that your SlimeVR-Server and SlimeVR-OpenVR-Driver repositories are in the same parent directory and run `protobuf_update.bat` located at `SlimeVR-Server\server\desktop`

src/bridge/ProtobufMessages.proto

@@ -47,7 +47,7 @@ package messages;
  * recieve messages this frame.
  */
 
-option java_package = "dev.slimevr.bridge";
+option java_package = "dev.slimevr.desktop.platform";
 option java_outer_classname = "ProtobufMessages";
 option optimize_for = LITE_RUNTIME;