MAGEDOC-3450:Automate build/deploy operations

Changed intro to fix link to Contribution guide

Author: bdenham

docs/getting-started/introduction.md

@@ -71,7 +71,7 @@ See [Install Page Builder](install-pagebuilder.md)
 
 * [Release notes](../release-notes.md)
 * [Component status](../comp-status2.md)
-* [Contribution guide](https://github.com/magento/magento2-page-builder/blob/develop/CONTRIBUTING.md)
+* [Contribution guide](../../CONTRIBUTING.md)
 
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