Update the readme

src/freedombone-app-radicale

 
     set_completion_param "radicale onion domain" "${RADICALE_ONION_HOSTNAME}"
 
-    if ! grep -q "Your RADICALE password is" /home/$MY_USERNAME/README; then
+    if ! grep -q "# Radicale" /home/$MY_USERNAME/README; then
         echo '' >> /home/$MY_USERNAME/README
-        echo $'# RADICALE' >> /home/$MY_USERNAME/README
-        echo $"RADICALE onion domain: ${RADICALE_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
-        echo $"Your RADICALE password is: ${RADICALE_PASSWORD}" >> /home/$MY_USERNAME/README
+        echo $'# Radicale' >> /home/$MY_USERNAME/README
+        echo $"Radicale onion domain: ${RADICALE_ONION_HOSTNAME}" >> /home/$MY_USERNAME/README
+        echo $"Your Radicale password is: ${RADICALE_PASSWORD}" >> /home/$MY_USERNAME/README
         chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
         chmod 600 /home/$MY_USERNAME/README
+    else
+        sed -i "s|Radicale onion domain.*|Radicale onion domain: ${RADICALE_ONION_HOSTNAME}|g" /home/$MY_USERNAME/README
+        sed -i "s|Your Radicale password is.*|Your Radicale password is: ${RADICALE_PASSWORD}|g" /home/$MY_USERNAME/README
     fi
 
     function_check configure_firewall_for_radicale