docs: Document versioning workflow and #SkipVersionBump mechanism in README (#515)

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Co-authored-by: lukasmatta <4323927+lukasmatta@users.noreply.github.com>
Co-authored-by: Lukáš Matta <lukasmatta@users.noreply.github.com>
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Author: 3 people

README.md

@@ -94,6 +94,25 @@ Execute `npm run generate-json-api` to generate documentation for any changes in
 
 See [playwright/README.md](playwright/README.md) for full details.
 
+#### Versioning and publishing
+
+The CI/CD pipeline automatically bumps the **minor version** and publishes the package to NPM on every push to `master` that either touches files under `projects/cps-ui-kit/**` or modifies `.github/workflows/cps-ui-kit-publish.yml`.
+
+To publish a **major** or **patch** version instead:
+
+1. Manually update the version in [`projects/cps-ui-kit/package.json`](projects/cps-ui-kit/package.json) to the desired version.
+2. Include `#SkipVersionBump` in the commit message so the pipeline skips the automatic minor bump and publishes exactly the version you set.
+
+Example commit message for the **final/head commit in the push** (the workflow checks only `github.event.head_commit.message`, so `#SkipVersionBump` must appear in the last commit message; the token is matched against the full message, so placing it in the footer is preferred):
+
+```
+chore: release patch fix
+
+#SkipVersionBump
+```
+
+> **Note:** Without `#SkipVersionBump`, any manual version change in `package.json` will be overwritten by the automatic minor bump before publishing.
+
 #### Run accessibility tests
 
 The project uses [pa11y-ci](https://github.com/pa11y/pa11y-ci) to test all components for WCAG 2.0 AA compliance.