fix mkdir

functions/utility.function

@@ -517,7 +517,7 @@ sudo mv /run/user/$UID/packetsearch.desktop /usr/share/applications/
 ##################################
 HDOCS() {
 	cd ${HOME}/Documents/
-	mkdir Reference
+	mkdir -p Reference
     ln -s ${HOME}/Documents/Reference ${HOME}/Desktop/Reference
 	cd Reference
 	wget --tries 2 --connect-timeout=60 https://icomamerica.com/en/amateur/amateurtools/US-BandPlan-Update-1-2020.pdf