updating docs

cmd/release/README.md

@@ -18,7 +18,7 @@ release -h
 * All commands require a Github token (classic) with the following permissions:
   * Be generated on behalf of an account with access to the `k3s-io/k3s` repo
   * `repo`
-  * `write:packages`    
+  * `write:packages`
 * An SSH key, follow the Github [Documentation](https://docs.github.com/en/authentication/connecting-to-github-with-ssh) to generate one.
 * A valid config file at `~/.ecm-distro-tools/config.json`
 
@@ -37,7 +37,7 @@ release tag system-agent-installer-k3s ga v1.29.2
 ```bash
 $ release generate k3s tags v1.26.12
 > failed to rebase and create tags: chown: changing ownership of '/home/go/.cache': Operation not permitted
-failed to initialize build cache at /home/go/.cache: mkdir /home/go/.cache/00: permission denied 
+failed to initialize build cache at /home/go/.cache: mkdir /home/go/.cache/00: permission denied
 ```
 Verify if the `$GOPATH/.cache` directory is owned by the same user that is running the command. If not, change the ownership of the directory:
 ```bash
@@ -56,6 +56,37 @@ release list rancher rc-deps 8c7bbcaabcfabb00b1c89e55ed4f68117f938262
 release list rancher rc-deps v2.7.12-rc1
 ```
 
+### Charts Release
+#### Examples
+##### Default workflow
+Git ref can be a tag, branch, or commit hash.
+```bash
+release list charts 2.9
+release update charts 2.9 rancher-vsphere-csi 104.0.1+up3.3.0-rancher2
+release push charts 2.9
+
+# to inspect before pushing
+release push charts 2.9 debug
+```
+
+Configure your autocompletion on `zsh` or `bash` for `release chart` commands.
+
+#### `zsh` configuration example:
+```
+./release completion zsh > completion.zsh
+mv completion.zsh ~/.zsh/completion/completion.zsh
+chmod +x ~/.zsh/completion/completion.zsh
+```
+
+Your `.zshrc` file must have something like the following:
+```
+# ECM-DISTRO-TOOLS
+export PATH=$PATH:/<home_path>/.local/bin/ecm-distro-tools
+source ~/.zsh/completion/completion.zsh
+fpath=(~/.zsh/completion $fpath)
+autoload -Uz compinit && compinit
+```
+
 ## Contributions
 
 * File Issue with details of the problem, feature request, etc.