Added vebose option to readme

Author: Jotham Gates

readme.md

@@ -34,6 +34,7 @@ Optional switches
     -s, --syntax       Send the file to the compiler for a syntax check only (no download)
         --nocolor      Disable terminal colour for systems that do not support it (Windows).
         --noifs        Disable evaluation of #if and #ifdef - this will be left to the compiler if present.
+        --verbose      Print preproccessor debugging info
     -h, --help         Display this help
 
 Optional switches only used if sending to the compiler