Docs update for MooreAnalysis!122 and MooreAnalysis!118

Ross John Hunter requested to merge hlteffchecker-funtuple-docs into master

Goes with Rec!3415 (merged), Analysis!985 (merged) and MooreAnalysis!122 (merged)

Also makes a few changes to HltEfficiencyChecker examples in the tutorial following MooreAnalysis!118 (merged) and fix a few warnings I came across in the doc build for this tutorial.

Edited by Ross John Hunter

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