Proofreading, capitalizing, adding screenshots to website, and fixing issue #244

Edit: Update: made suggested changes in comments you had below and changed all instances in help.irh from "Matamagic" to "Metamagic".

Sorry this is messy... I'm still figuring Git out and trying to make changes in a more organized fashion. Let me know if there's anything I can improve.

For Issue #244, I only changed text in comments or strings. I did not change variable names in code related to flat-footedness because I didn't know if you wanted me to, and I was also trying to find a good way to distinguish isFlatFooted and isFlatFoot with isOffGuard and.. something else I couldn't find a sensible variable name for.

Here are changes:

• Proofread the Character Generation section.

• Proofread the User Interface section.

• Proofread the Command Listing section.

• Added screenshot for website.

• Added a screenshot to the appropriate section.

• Changed instances of 'flat-footed' to 'off-guard' in strings and comments.

• Changed instances of 'flat-footed' to 'off-guard'.

• Added screenshot for homepage.

• yygram.cpp

  Uploading rmtew's version because I had a merge I could not resolve.

• Capitalized the name of spells.