Update building prereqs to include libjq (drasi-project#83)

Author: danielgerlag

docs/contributing/contributing-code/contributing-code-prerequisites/README.md

@@ -17,6 +17,19 @@ This is the list of core dependencies to install for the most common tasks. In g
 - [Git](https://git-scm.com/downloads)
 - [Rust](https://www.rust-lang.org/tools/install)
 
+### Shared Libraries
+
+#### libjq
+
+Building the `middleware` crate will require `libjq` to be installed in your system. This can be done by [installing JQ](https://jqlang.org/download/) using your system package manager, such as Homebrew on MacOS, vcpkg on Windows or apt on Linux. Depending on your installation, you may also need to manually set the `JQ_LIB_DIR` environment variable if the build cannot automatically find it. Some common places where you might find this are:
+
+| Package Manager | Path |
+|-|-|
+| Homebrew | `/opt/homebrew/lib` |
+| apt | `/usr/lib/x86_64-linux-gnu` |
+| tdnf | `/usr/lib64` |
+| vcpkg | `C:\vcpkg\installed\x64-windows\lib` |
+| Chocolatey | `C:\ProgramData\chocolatey\lib` |
 
 ### Enable Git Hooks