minirst: find admonitions before pruning comments and adding margins Lines with only a directive are not deleted anymore because they are detected before comments are deleted by prunecomments(). addmargins() will be adapted later.

minirst: do not fail on an empty admonition block

minirst: do not interpret a directive as a literal block When a directive was on its own line, it was interpreted as a literal block. Example of problematic input: .. note:: a note text