linkify some non-linked links

Author: SethTisue

community/index.md

@@ -187,12 +187,12 @@ Also, on GitHub, a common convention is to use the label "good first issue"
 on issues that are especially easy on-ramps to getting started in
 a particular repo:
 
-* "good first issue" tickets: https://github.com/search?q=type%3Aissue+label%3A%22good+first+issue%22+language%3AScala+state%3Aopen&type=Issues
+* "good first issue" tickets: [GitHub link](https://github.com/search?q=type%3Aissue+label%3A%22good+first+issue%22+language%3AScala+state%3Aopen&type=Issues)
 
 And, some repos also use a "help wanted" label if the maintainers
 especially desire contributor attention:
 
-* "help wanted" tickets: https://github.com/search?q=type%3Aissue+label%3A%22help+wanted%22+language%3AScala+state%3Aopen&type=Issues
+* "help wanted" tickets: [GitHub link](https://github.com/search?q=type%3Aissue+label%3A%22help+wanted%22+language%3AScala+state%3Aopen&type=Issues)
 
 ## Phil Bagwell Memorial Scala Community Award