Mention Remote-Containers version

Author: chrmarti

remote-release-notes/v1_48.md

@@ -7,7 +7,7 @@
 * [1760](https://github.com/microsoft/vscode-remote-release/issues/1760): Panel "check remote" keeps popping out and interrupting my work
 * [2518](https://github.com/microsoft/vscode-remote-release/issues/2518): Remote SSH password keeps asking password (Installation already in progress)
 
-## Containers
+## Containers (version 0.134.0)
 
 ### Environment variables probe