Fix formatting of Atom links in JS courses

Fixes #599

Author: tjgrathwell

sites/en/javascript-snake-game/lesson-1.step

@@ -23,7 +23,7 @@ steps do
       When programming, you'll generally want these tools on hand:
 
       * Your browser to see the code running (I recommend Chrome)
-      * A text editor to change the code (Railsbridge recommends <a href="https://atom.io/"> Atom, but you can <a href="/installfest/editors">try a different editor</a>)
+      * A text editor to change the code (Railsbridge recommends <a href="https://atom.io/">Atom</a>, but you can <a href="/installfest/editors">try a different editor</a>)
       * A javascript console so you can experiment and print out debugging
       messages. This is built into your browser.
 

sites/en/javascript-to-do-list-with-react/javascript-to-do-list-with-react.step

@@ -40,7 +40,7 @@ When programming, you'll generally want these tools on hand:
 
   * An internet connection. We're going to be communicating with other websites using JavaScript.
   * Your browser to see the code running (I recommend Chrome, but any will do!)
-  * A text editor to change the code (Railsbridge recommends <a href="https://atom.io/"> Atom, but you can <a href="/installfest/editors">try a different editor</a>)
+  * A text editor to change the code (Railsbridge recommends <a href="https://atom.io/">Atom</a>, but you can <a href="/installfest/editors">try a different editor</a>)
   * A javascript console so you can experiment and print out debugging
   messages. This is built into your browser.
 

sites/en/javascript-to-do-list/javascript-to-do-list.step

@@ -38,7 +38,7 @@ When programming, you'll generally want these tools on hand:
 
   * An internet connection. We're going to be communicating with other websites using JavaScript.
   * Your browser to see the code running (I recommend Chrome, but any will do!)
-  * A text editor to change the code (Railsbridge recommends <a href="https://atom.io/"> Atom, but you can <a href="/installfest/editors">try a different editor</a>)
+  * A text editor to change the code (Railsbridge recommends <a href="https://atom.io/">Atom</a>, but you can <a href="/installfest/editors">try a different editor</a>)
   * A Javascript console so you can experiment and print out debugging
   messages. This is built into your browser.