Update @dickeylth as a contributor

Author: rtfpessoa

.all-contributorsrc

@@ -205,7 +205,8 @@
       "avatar_url": "https://avatars1.githubusercontent.com/u/2196373?v=4",
       "profile": "http://webminer.js.org",
       "contributions": [
-        "bug"
+        "bug",
+        "doc"
       ]
     },
     {

README.md

@@ -518,7 +518,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/emarcotte"><img src="https://avatars0.githubusercontent.com/u/249390?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Eugene Marcotte</b></sub></a><br /><a href="https://github.com/rtfpessoa/diff2html/commits?author=emarcotte" title="Code">💻</a></td>
     <td align="center"><a href="http://twitter.com/dimasabanin"><img src="https://avatars0.githubusercontent.com/u/8316?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Dima Sabanin</b></sub></a><br /><a href="#maintenance-dsabanin" title="Maintenance">🚧</a> <a href="https://github.com/rtfpessoa/diff2html/commits?author=dsabanin" title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/benabbottnz"><img src="https://avatars2.githubusercontent.com/u/2616473?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ben Abbott</b></sub></a><br /><a href="https://github.com/rtfpessoa/diff2html/commits?author=benabbottnz" title="Documentation">📖</a></td>
-    <td align="center"><a href="http://webminer.js.org"><img src="https://avatars1.githubusercontent.com/u/2196373?v=4?s=100" width="100px;" alt=""/><br /><sub><b>弘树@阿里</b></sub></a><br /><a href="https://github.com/rtfpessoa/diff2html/issues?q=author%3Adickeylth" title="Bug reports">🐛</a></td>
+    <td align="center"><a href="http://webminer.js.org"><img src="https://avatars1.githubusercontent.com/u/2196373?v=4?s=100" width="100px;" alt=""/><br /><sub><b>弘树@阿里</b></sub></a><br /><a href="https://github.com/rtfpessoa/diff2html/issues?q=author%3Adickeylth" title="Bug reports">🐛</a> <a href="https://github.com/rtfpessoa/diff2html/commits?author=dickeylth" title="Documentation">📖</a></td>
   </tr>
   <tr>
     <td align="center"><a href="https://github.com/Rantanen"><img src="https://avatars0.githubusercontent.com/u/385385?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Mikko Rantanen</b></sub></a><br /><a href="https://github.com/rtfpessoa/diff2html/issues?q=author%3ARantanen" title="Bug reports">🐛</a></td>