Documentation fixes

[eskwayrd]

• inserted underscores in section ids and permalinks, to avoid the crafted ids from being flagged as misspellings
• replaced "prettprint" with "prettyprint" in code block classes
• fixed various typos
• replaced "webpage" with "web page"
• replaced "website" with "web site"
• replaced "wealths of" with "many"
• added commas to numbers that needed them
• removed a seemingly unnecessary named anchor "sconf"
• fixed capitalization for various product names
• applied a couple of minor grammatical fixes

[cboden]

Thank you very much for your contribution! My apologies it took me so long to review.