Should resolve issues occurring in current Staging

[WillStrohl]

Related to Issue

Fixes #26

Description

Changes an Add statement to an Update statement when evaluating blog post tags, preventing duplicate key exceptions from occurring.

How Has This Been Tested?

It must be tested in Staging.

Screenshots (if appropriate):

N/A

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.