r class=md-nav__link> <span class=md-ellipsis> How to Become a Contributor </span> </a> </li> <li class=md-nav__item> <a href=#recognition-criteria class=md-nav__link> <span class=md-ellipsis> Recognition Criteria </span> </a> </li> <li class=md-nav__item> <a href=#contributor-levels class=md-nav__link> <span class=md-ellipsis> Contributor Levels </span> </a> <nav class=md-nav aria-label="Contributor Levels"> <ul class=md-nav__list> <li class=md-nav__item> <a href=#1-occasional-contributor class=md-nav__lin