Update contributing link

Signed-off-by: Saburesh07 <220188172+Saburesh07@users.noreply.github.com>

Author: Saburesh07

CONTRIBUTING.md

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-Please refer to CONTRIBUTING.md for the `chef` project: https://github.com/chef/chef/blob/main/CONTRIBUTING.md".
+# Contributing to a Progress Chef Workstation Project
+
+Thank you for your interest in contributing to this project! It is part of the larger Progress Chef Workstation project. Contribution guidelines can be found at [Contributing to Progress Chef Workstation](https://chef.github.io/chef-oss-practices/workstation/inspec/contributing/).
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