Minor typo in Pncconf...

Is the 'Show Advanced Option Pages' checkbox going away in 2.9?

I was just working on another pull request, but thought I better ask before spending too much time.

ex. You can also select 'Use INI substitution for Mesa board names.' and 'Show Advanced option Pages', which make additional settings and pages available as you proceed through the configuration process. These include making PID settings available, and pages such as...

Edit: Disregard. I submitted the pull request. Let me know if/how I can do better.