Update the gdk.yml sample config for Nginx
What does this Merge Request do and why?
Updating the gdk.yml sample config for the Nginx doc to depict that the keys certificate and key are the paths to those files. In case someone doesn't keep these files inside the GDK directory then nginx fails to load successfully as it cannot locate the certificates.
Merge Request checklist
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This change is backward compatible. If not, please include steps to communicate to our users. -
Tests added for new functionality. If not, please raise Issue to follow-up. -
Documentation added/updated, if needed. -
gdk doctortest added, if needed. -
Add the ~highlightlabel if this MR should be included in theCHANGELOG.md.