Add Arch Linux build prerequisites to documentation

docs/BuildPrerequisites.md

@@ -18,6 +18,7 @@ please refer to the `node.js` website for instructions on [how to install the la
 
 Run the following commands to install dependent libraries required by the PiPedal build.
 
+Ubuntu:
     sudo apt update 
     sudo apt upgrade
     
@@ -28,6 +29,27 @@ Run the following commands to install dependent libraries required by the PiPeda
         libgoogle-perftools-dev \
         libpipewire-0.3-dev libbz2-dev libssl-dev librsvg2-dev
 
+Arch:
+
+    sudo pacman -S --needed lilv boost systemd catch2 alsa-lib \
+        util-linux avahi networkmanager icu libzip gperftools \
+        pipewire bzip2 openssl librsvg sdbus-cpp
+
+    There is one AUR package:
+    sudo paru -S authbind
+
+Note: in Arch, tests and copyright notices won't work, so they need to be disabled with cmake arguments. Add this to your .vscode/settings.json file:
+
+```json
+{
+    "cmake.configureSettings": {                                                                                                                                                                                                         
+        "PIPEDAL_EXCLUDE_TESTS": "ON",                                                                                                                                                                                                   
+        "DISABLE_COPYRIGHT_BUILD": "ON"                                                                                                                                                                                                  
+    },
+    ...
+}
+```
+    
 
 ### Installing Sources