Update readme

Signed-off-by: Matt Friedman <maf675@gmail.com>

Author: iMattPro

README.md

@@ -1,6 +1,6 @@
 # phpBB Media Embed PlugIn
 
-An extension for phpBB 3.2 that allows the user to embed content from allowed sites using a [media] BBCode, or from simply posting a supported URL in plain text.
+An extension for phpBB that allows the user to embed content from allowed sites using a [media] BBCode, or from simply posting a supported URL in plain text.
 
 [![Build Status](https://github.com/phpbb-extensions/mediaembed/workflows/Tests/badge.svg)](https://github.com/phpbb-extensions/mediaembed/actions)
 [![codecov](https://codecov.io/gh/phpbb-extensions/mediaembed/branch/master/graph/badge.svg?token=EzEFamVD12)](https://codecov.io/gh/phpbb-extensions/mediaembed)