Release 3.11.0

Changed

• Inline processors now resume searching after the previous match, improving
  performance for repeated inline patterns (#1619).
• Officially support Python 3.15 and drop support for Python 3.10
• Walk backtick runs in BacktickInlineProcessor without a regex (#1620).
• Switch static site generator for documentation from MkDocs to Zensical
  (#1627, #1635, #1637, and #1638).

Fixed

• Ensure removing Abbreviations does not raise an error (#1634).
• Fix an issue with excessive backtracking when matching inline code blocks (#1617).
• md_in_html now honors tags added to Markdown.block_level_elements after
  the extension is loaded (#1246).
• Fix quadratic-time regex backtracking in ReferenceProcessor when a link
  reference definition has no URL, e.g. a line consisting only of [id]:
  followed by many trailing spaces (#798).
• Document attr_list usage for def_list (#1123).