Update 6.x-or-7.x-to-7.6.md
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Resolve these conflicts or ask someone with write access to this repository to merge it locally.
Created by: NuLL3rr0r
Added missing libkrb5-dev as mentioned here https://github.com/gitlabhq/gitlabhq/edit/7-6-stable/doc/update/7.5-to-7.6.md
The comparison view may be inaccurate due to merge conflicts.
Resolve these conflicts or ask someone with write access to this repository to merge it locally.