add note to readme for vscode-oss users

Author: getzze

README.md

@@ -48,3 +48,20 @@ sudo apk add bash libstdc++
 ## SSH configuration file
 
 [OpenSSH](https://www.openssh.com/) supports using a [configuration file](https://linuxize.com/post/using-the-ssh-config-file/) to store all your different SSH connections. To use an SSH config file, run the `Remote-SSH: Open SSH Configuration File...` command.
+
+## Note for VSCode-OSS users
+
+If you are using VSCode-OSS instead of VSCodium, you need some extra steps to make it work.
+
+Mainly, VSCodium versions have an extra `release` part that you need to provide for the plugin to download
+the appropriate version. For this, look for the release number associated with your version of VSCode
+in the [release page](https://github.com/VSCodium/vscodium/releases/).
+For instance, for VSCode version "1.96.0", the (last) VSCodium release number is "24352".
+
+Then, in the plugin settings, modify the following entries:
+
+```
+"remote.SSH.experimental.modifyMatchingCommit": true,
+"remote.SSH.experimental.serverBinaryName": "codium-server",
+"remote.SSH.vscodiumReleaseNumber": "<vscodium-release>",
+```