Mention EmacsConf in README
Create a variable for the attribution prefix text.
Set ox-hugo preemption fallback for < 27.x
Work around let-binding bias.
Allow override of time encoding locale.
Work around ox-hugo aggressive multi-line wrapping
Move HR out of planet sexp.
New CSS for planet.
Correct more planet HTML validation
Correct syndicate HTML validation.
Allow for summary to be disabled.
More support for webkit CSS.
Truncate long syndicate names
Fix CSS formatting for iOS and Webkit.
Revert "Modify installation documentation."

This reverts commit 3b7ec14c4143e009acd3460f0e650d3b5e5778e0.
Modify installation documentation.