meta-description-demo-systems-all
Why is this change being made?
Adding meta description to handbook per https://gitlab.slack.com/archives/C0259241C/p1603735042194300
Author Checklist
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Provided a concise title for the MR 
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Added a description to this MR explaining the reasons for the proposed change, per say-why-not-just-what 
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Assign this change to the correct DRI - If the DRI for the page/s being updated isn’t immediately clear, then assign it to your manager.
- If your manager does not have merge rights, please ask someone to merge it AFTER it has been approved by your manager in #mr-buddies.
- If the changes relate to any part of the project other than updates to content and/or data files please make sure to ping @gl-static-site-editorin a comment for a review and merge. For example changes to.gitlab-ci.yml, JavaScript/CSS/Ruby code or the layout files.
 
Edited  by Jefferson Jones