Add rate mirrors headsup (#343)

Author: jeevithakannan2

tabs/system-setup/system-update.sh

@@ -6,7 +6,9 @@ fastUpdate() {
     case "$PACKAGER" in
         pacman)
 
-          $AUR_HELPER -S --needed --noconfirm rate-mirrors-bin
+            $AUR_HELPER -S --needed --noconfirm rate-mirrors-bin
+
+            printf "%b\n" "${YELLOW}Generating a new list of mirrors using rate-mirrors. This process may take a few seconds...${RC}"
 
             if [ -s /etc/pacman.d/mirrorlist ]; then
                 "$ESCALATION_TOOL" cp /etc/pacman.d/mirrorlist /etc/pacman.d/mirrorlist.bak
@@ -100,4 +102,4 @@ checkAURHelper
 checkEscalationTool
 fastUpdate
 updateSystem
-updateFlatpaks
+updateFlatpaks