Update README.md

README.md

 # Alpine Linux PHP-FPM & Nginx containter
 
-This container gives a template/start for running PHP applications.
\ No newline at end of file
+This container gives a template/start for running PHP applications.
+
+## BETA
+
+This container is still considerd BETA. Do not use as production until this paragraph is removed.
+
+## Versioning
+
+Versioning of the containers are in the format of x.x.x 
+
+The two first numbers corresponds with the Alpine Linux numbers.
+The third and last number is a running number.