* correct misc typos
We also seem to be favoring `behavior` over `behaviour`.
* bump MkDocs version
* resolve errors shown when buildg docs
* improve the Rspamd page
* behaviour -> behavior
Streamline the usage of this word. The majority used behavior, so I
opted to go with this way of spelling it.
* Apply suggestions from code review
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Co-authored-by: Brennan Kinney <5098581+polarathene@users.noreply.github.com>
Georg Lauterbach
wolkenschieber