Add clarification to yml file alterations

Why is this change being made?

I just went through the process of updating company KPI's in the handbook, and learned some additional information that was useful to share. I added in information about the exact syntax, in spaces, that needs to be used.

Author and Reviewer Checklist

Please verify the check list and ensure to tick them off before the MR is merged.

• Provided a concise title for this Merge Request (MR)
• Added a description to this MR explaining the reasons for the proposed change, per say why, not just what
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