Update 04-explore.md

Author: adamd

responses/04-explore.md

@@ -1,6 +1,10 @@
+Though you've completed this course, there's plenty more to learn. You can even use this program as a place to start.
+
 Here are some ideas for next steps:
 
-- Add some more quotes to your text file
-- Learn about file writing and add quotes programmatically
+- [ ] Add some more quotes to your text file
+- [ ] Print out more than one quote at a time
+- [ ] Remove that extra line (called a newline) when printing
+- [ ] Learn about file writing and add quotes programmatically
 
-TODO: clean up, add more next steps, tell them to close the issue when they're done
+Give one or more of those a shot, then when you're really ready to move on, **close this issue**.