Merge branch '73-update-dead-link-to-command-line-tutorial' into 'master'

73 Fixed dead link

Closes #73

See merge request srct/srctweb!88

srctweb/_pages/home.html

@@ -292,7 +292,7 @@ jumbotron: true
                               <a href="https://www.codecademy.com/learn/learn-the-command-line">this tutorial</a>
                               is a great place to begin.
                               If you're already using Linux or macOS,
-                              <a href="http://cli.learncodethehardway.org/book/">this tutorial</a>
+                              <a href="https://www.computervillage.org/articles/CommandLine.pdf">this tutorial</a>
                               is another great resource (ignore the intimidating title) to try things out
                               on your own machine. Once you have a little practice under your belt,
                               try following our documentation to deploy one of our