Refactor documentation for `gensim.models.coherencemodel` (#1933)
Refactor documentation for `gensim.models.coherencemodel` (#1933)

* First steps

* Improvement I

* More updates

* Pre-final

* fix coherencemodel[1]

* fix coherencemodel[2]

* fix coherencemodel[3]

* fix coherencemodel[4]

* fix num of process

mattilyra/gensim,mattilyra/gensim,RaRe-Technologies/gensim,gojomo/gensim,RaRe-Technologies/gensim,mattilyra/gensim,RaRe-Technologies/gensim,piskvorky/gensim,piskvorky/gensim,gojomo/gensim,gojomo/gensim,gojomo/gensim,RaRe-Technologies/gensim,piskvorky/gensim