doc(middleware): Clarify how process_request can be used to re-route requests

[kgriffs]

No description provided.

[codecov]

Codecov Report

Merging #1441 into master will not change coverage.
The diff coverage is n/a.

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##           master   #1441   +/-   ##
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  Coverage     100%    100%           
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  Files          39      39           
  Lines        2565    2565           
  Branches      396     396           
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  Hits         2565    2565

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[codecov]

Codecov Report

Merging #1441 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #1441   +/-   ##
======================================
  Coverage     100%    100%           
======================================
  Files          39      39           
  Lines        2565    2565           
  Branches      396     396           
======================================
  Hits         2565    2565

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 14b482a...7757ad7. Read the comment docs.

[vytas7]

LGTM, thanks!
(I remember I took a note of this being raised on our user channel, just have never got back to it... 😬 )