>>> h1 # header <<< <h1>header</h1> >>> h2 ## header <<< <h2>header</h2> >>> h3 ### header <<< <h3>header</h3> >>> h4 #### header <<< <h4>header</h4> >>> h5 ##### header <<< <h5>header</h5> >>> h6 ###### header <<< <h6>header</h6> >>> trailing "#" are removed # header ###### <<< <h1>header</h1>
