Added the ability to vendor shaderc

README.md

@@ -1,7 +1,8 @@
 Installing on RPi (3 or 4):
 
-```
+```shell
 curl https://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
 echo deb https://apt.llvm.org/bullseye llvm-toolchain-bullseye-14 main >/etc/apt/sources.list.d/llvm14.list
-apt install llvm-14-tools llvm-14-dev clang build-essential cmake
-```
+apt install llvm-14-tools clang build-essential cmake git \ 
+    llvm-14-dev libboost-log-dev spirv-headers spirv-tools
+```