Squashed 'docs/' changes from 3a923e155..710856e5a

Squashed 'docs/' changes from 3a923e155..710856e5a

710856e5a Release 0.84.0
362f4ea7b releaser: Add release notes to /docs for release of 0.84.0
6bb8800f7 docs: Regenerate docs helper
00a522e6a docs: Regenerate docshelper
bc171954b Merge commit '92405e5b0adc5d8c3dfde88d6a8b67eb09169190'
ef73ffc3b Misc config loading fixes
0b4117f7f docs: Regenerate docs helper
9b9452b9c Merge commit '32ba623541d74ee0b7ae4efb1b8326dc49af28b8'
9c4413dd9 tpl/fmt: Add erroridf template func
e1875742e tpl/data: Misc header improvements, tests, allow multiple headers of same key
e4560893c Add math.Max and math.Min
7dc282eaf common/maps: Add Scratch.DeleteInMap
b9cd77171 docs: Update querify function description and examples

git-subtree-dir: docs
git-subtree-split: 710856e5a6c683ce26d385960423303cc109c09e