Fixed runon sentence in welcome quest sidebar per LEARNVM-92
Fixed indented code block in setup section
Fixed typos and instructions in power of puppet quest per LEARNVM-95 and LEARN-VM-94
Completed comparative in power of puppet quest per LEARNVM-96
Expanded modulepath explanation per LEARNVM-97
fixed test in mysql quest per LEARNVM-98
fixed typo in ntp quest per LEARNVM-100
Merge pull request #170 from kjhenner/quest-guide-edits

Quest guide edits