diff --git a/README.md b/README.md
index 5cb281f..2533108 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,11 @@
 # conn
 quick and dirty server availability check <br>
+### features: <br>
+- multi-input detection
+- ipv4 input detection
+- ipv6 input detection
+- waiting for availability
+- send notification on availability
 
 requires fping and nmap (and bash)
 
@@ -9,6 +15,7 @@ Options: <br>
  -m/--multi -- test multiple ips / disable portscan <br>
  -h/--help -- show help <br>
  -6/--force-ipv6 -- force ipv6 portscanning (also forces portscanning) <br>
+ -4/--force-ipv4 -- force ipv4 portscanning (also forces portscanning) <br>
  -y/--yes -- portscan without asking <br>
  -n/--no -- dont portscan <br>
  -p/--portscan -- same as -y <br>