Update README.md

README.md

@@ -1,7 +1,7 @@
 # Supported tags and respective `Dockerfile` links
 
   -	[`2.0` (*Dockerfile*)](https://github.com/keviocastro/elgg-docker/blob/2.0/Dockerfile), [`lastest` (*Dockerfile*)](https://github.com/keviocastro/elgg-docker/blob/master/Dockerfile)
-  -	[`1.9` (*Dockerfile*)](https://github.com/keviocastro/elgg-docker/blob/1.9/Dockerfile)
+  -	[`1.12` (*Dockerfile*)](https://github.com/keviocastro/elgg-docker/blob/1.12/Dockerfile)
 
 
 # What is Elgg ?