Update Contributors.md

Contributors.md

@@ -2,20 +2,20 @@
 
 ## Active contributors
 
-Yao Yao @erikyao
-Jason Lin @jal347
-Everaldo Raldopho @everaldorodrigo
-@sengineer0
-@remoteeng00
-Chunlei Wu @newgene
+Yao Yao [@erikyao](https://github.com/erikyao) <br />
+Jason Lin [@jal347](https://github.com/jal347) <br />
+Everaldo Rodolpho [@everaldorodrigo](https://github.com/everaldorodrigo) <br />
+[@sengineer0](https://github.com/sengineer0) <br />
+[@remoteeng00](https://github.com/remoteeng00) <br />
+Chunlei Wu [@newgene](https://github.com/newgene) <br />
 
 ## Past contributors
 
-Sebastien Lelong @sirloon
-Cyrus Afrasiabi @cyrus0824
-Xinghua "Jerry" Zhou @namespacestd0
-Zhongchao Qian @zcqian
-Ricardo Avila @ravila4
+Sebastien Lelong [@sirloon](https://github.com/sirloon) <br />
+Cyrus Afrasiabi [@cyrus0824](https://github.com/cyrus0824) <br />
+Xinghua "Jerry" Zhou [@namespacestd0](https://github.com/namespacestd0) <br />
+Zhongchao Qian [@zcqian](https://github.com/zcqian) <br />
+Ricardo Avila [@ravila4](https://github.com/ravila4) <br />
 
 See more at:
-https://github.com/biothings/biothings.api/graphs/contributors
+https://github.com/biothings/biothings.api/graphs/contributors