modified the README, added a small description and usage

README.md

@@ -1,3 +1,18 @@
-# the-monitor
+# The Monitor
 
-the monitor is a bash tool used to monitor hundreds to thousands of domains in a simple an quick fashion.
+the monitor is a bash tool used to monitor hundreds to thousands of domains in a simple an quick fashion.
+
+its simple as shit honestly. just a parallelized `xargs` call. but hell, its so good :)
+
+# usage
+
+modify the `lista.txt` file with the domains you want to monitor. after that, just `chmod +x main.sh` and let her rip.
+
+
+```bash
+git clone https://git.resacachile.cl/anti/the-monitor
+cd the-monitor
+vim lista.txt # modify the list
+chmod +x main.sh
+./main.sh
+```