VOL-4840 - Doc fixes

testing/certification.rst
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   o Corrected spelling for Hillsboro Oregon site.
   o Made a few content and formatting changes.

VERSION
release_notes/voltha_2.10.rst
-----------------------------
   o Remove execute permissions from config and doc files.
   o Having the ability to run your documentation is a novel attribute.

Change-Id: Idf353ecf84103acf8d31e1c361ebf8a4a7786e6a
3 files changed