updated readme equivalence example

README

@@ -1,2 +1,2 @@
 this program does the same thing as this:
-xrandr --props | awk '$2 ~ /^connected/ {printf $1 ":";getline;getline;while($2 == ""){printf $1;getline;};printf "\n";}'
+xrandr --props | awk '$2 ~ /connected/ {printf $1 ":";getline;getline;while($2 == ""){printf $1;getline;};printf "\n";}'