SUP-2910, Misc. onboarding (Skill picker) issues

-- Updated the instructions text to be generic.

Author: vikasrohit

app/skill-picker/skill-picker.jade

@@ -1,7 +1,7 @@
 .skill-picker-container
   h1 Welcome to Topcoder
 
-  p.instruction Hi {{vm.username}}! Your account is now active. To help other members get to know you, select the communities and tracks in which you're interested, and specify some of your skills. You can edit this information later on your Profile.
+  p.instruction Hi {{vm.username}}! Your account is now active. To help other members get to know you, select your areas of interest and specify some of your skills. You can edit this information later on your Profile.
 
   .communities(ng-show="!vm.loadingCommunities && vm.showCommunity")
     .communities__title Communities