Enable vale for prose linting (#3)

* Enable vale in CI

* Add vale config

* Tweak vale

* Update config

* Update .gitignore

* Switch back

* Rename CI

* Add badges

* Tidy up CI

* Change image

* Configure vale

* Delint

* Update README

.github/styles/proselint/Nonwords.yml

@@ -0,0 +1,38 @@
+extends: substitution
+message: "Consider using '%s' instead of '%s'."
+ignorecase: true
+level: error
+action:
+  name: replace
+swap:
+  affrontery: effrontery
+  analyzation: analysis
+  annoyment: annoyance
+  confirmant: confirmand
+  confirmants: confirmands
+  conversate: converse
+  crained: craned
+  discomforture: discomfort|discomfiture
+  dispersement: disbursement|dispersal
+  doubtlessly: doubtless|undoubtedly
+  forebearance: forbearance
+  improprietous: improper
+  inclimate: inclement
+  inimicable: inimical
+  irregardless: regardless
+  minimalize: minimize
+  minimalized: minimized
+  minimalizes: minimizes
+  minimalizing: minimizing
+  optimalize: optimize
+  paralyzation: paralysis
+  pettifogger: pettifog
+  proprietous: proper
+  relative inexpense: relatively low price|affordability
+  seldomly: seldom
+  thusly: thus
+  uncategorically: categorically
+  undoubtably: undoubtedly|indubitably
+  unequivocable: unequivocal
+  unmercilessly: mercilessly
+  unrelentlessly: unrelentingly|relentlessly