fix(markdown): fix various markdown issues (#370)
fix(markdown): fix various markdown issues (#370)

* fix(markdown): Make <th> contents run through defaultRenderer

* fix(markdown): Remove default values and enable pedantic mode

* fix(markdown): Use our own Cell when a <td> contains an <img>

* refactor(md): refactor/squeeze down some code

Antoine38660/git-point,gitpoint/git-point,Antoine38660/git-point,dyesseyumba/git-point,gitpoint/git-point,gitpoint/git-point,Antoine38660/git-point,dyesseyumba/git-point,dyesseyumba/git-point