Update spelling replacement rule for 'algorithmical'

Summary:
I suspect that when people use 'algorithmical', they mean it as an adjective and not an adverb.

'algorithmic' = adjective
'algorithmically' = adverb

Test Plan: Add the word 'algorithmical' to a file. Run `arc lint` on the file. See suggestion to correct it to 'algorithmic'.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D6373