Add example .env configuration file

.env.example

@@ -0,0 +1,7 @@
+# Src Path
+# The path to the source code directory
+# This should be relative to the location of this .env file
+# Example: SRC_PATH=./src
+SRC_PATH=./src
+# The IP address of your X server, e.g., 192.168.1.100
+DISPLAY_IP=