Move browser instructions to "In either case" section

Author: Katrin Leinweber

_includes/lc/setup.html

@@ -34,16 +34,15 @@ <h3>Git</h3>
     version of your code
     on <a href="https://github.com/">GitHub.com</a>,
     <a href="https://gitlab.com/">GitLab.com</a> or another, possibly
-    institution-internal code-hosting platform. You will need a
-    <a href="https://help.github.com/articles/supported-browsers/">supported
-    web browser</a>.
+    institution-internal code-hosting platform.
     If the schedule doesn't mention any, the instructor will tell you which.
   </p>
   <p>
     In either case, basic accounts are free, so please consider what personal
     information you'd like to reveal. For example, you may want to review these
     <a href="https://help.github.com/articles/keeping-your-email-address-private/">instructions
-    for keeping your email address private</a> and/or use a throw-away email address.
-    We encourage you to create a GitHub account if you don't have one already.
+    for keeping your email address private</a> and/or use a throw-away email account.
+    Also, you will need a <a href="https://help.github.com/articles/supported-browsers/">supported
+    web browser</a>.
   </p>
 </div>

_includes/swc/setup.html

@@ -118,17 +118,16 @@ <h3>Git</h3>
     version of your code
     on <a href="https://github.com/">GitHub.com</a>,
     <a href="https://gitlab.com/">GitLab.com</a> or another, possibly
-    institution-internal code-hosting platform. You will need a
-    <a href="https://help.github.com/articles/supported-browsers/">supported
-    web browser</a>.
+    institution-internal code-hosting platform.
     If the schedule doesn't mention any, the instructor will tell you which.
   </p>
   <p>
     In either case, basic accounts are free, so please consider what personal
     information you'd like to reveal. For example, you may want to review these
     <a href="https://help.github.com/articles/keeping-your-email-address-private/">instructions
     for keeping your email address private</a> and/or use a throw-away email account.
-    We encourage you to create a GitHub account if you don't have one already.
+    Also, you will need a <a href="https://help.github.com/articles/supported-browsers/">supported
+    web browser</a>.
   </p>
 
   <div>