Dollar amounts in prose no longer break your text
Currency mentions like "$61 … $76" are no longer mistaken for math formulas.
Text that mentioned two dollar amounts used to break silently. A sentence like:
Solar cost about $61 per MWh, cheaper than gas at $76/MWh.
was mistaken for a math formula: everything between the two $ signs — including the *cheaper* emphasis — got swallowed and rendered as garbled KaTeX instead of text.
This is now fixed. A $…$ is only treated as math when there's no space right after the opening $ and no space right before the closing $. Every other $ — currency amounts, a lone dollar sign, $HOME, etc. — renders as a literal dollar sign, and any markdown around it (bold, italic, links) renders normally.
