Updated README and starting on more complex rofi script

scryfall_deser/scripts/search_with_rofi.sh

@@ -1,6 +1,10 @@
 #!/bin/sh
 
 CARDS=$(/home/arthurr/code/mini_projects/scryfall_deser/target/debug/scryfall_deser $@)
+RETURN=$?
+echo $RETURN
+
+if [ $RETURN -eq 0 ]; then
 
 SELECTION=$(rofi -dmenu -i << EOF
 $CARDS
@@ -15,3 +19,5 @@ CARD_OUTPUT=$(/home/arthurr/code/mini_projects/scryfall_deser/target/debug/scryf
 sleep 0.05
 
 rofi -e "$CARD_OUTPUT"
+
+fi