[DOCS] Update elasticsearch version in repositories.asciidoc

docs/reference/setup/repositories.asciidoc

@@ -20,7 +20,7 @@ Add the following to your /etc/apt/sources.list to enable the repository
 
 [source,sh]
 --------------------------------------------------
-deb http://packages.elasticsearch.org/elasticsearch/1.1/debian stable main
+deb http://packages.elasticsearch.org/elasticsearch/1.2/debian stable main
 --------------------------------------------------
 
 Run apt-get update and the repository is ready for use. You can install it with :
@@ -47,9 +47,9 @@ in a file named (for example) `elasticsearch.repo`
 
 [source,sh]
 --------------------------------------------------
-[elasticsearch-1.1]
-name=Elasticsearch repository for 1.1.x packages
-baseurl=http://packages.elasticsearch.org/elasticsearch/1.1/centos
+[elasticsearch-1.2]
+name=Elasticsearch repository for 1.2.x packages
+baseurl=http://packages.elasticsearch.org/elasticsearch/1.2/centos
 gpgcheck=1
 gpgkey=http://packages.elasticsearch.org/GPG-KEY-elasticsearch
 enabled=1