A minor release, mainly aimed at resolving ambiguity about the import path for blackfriday v2 and delivering minor fixes since last release:

• Committed to github.com/russross/blackfriday/v2 as the canonical import path for blackfriday v2. (Issue #587)
• Reduced the amount of dependencies. (PRs #509 and #515)
• Added a SanitizedAnchorName function. (PR #509)
• Added Node.IsContainer and Node.IsLeaf methods. (PR #540)
• Fixed parsing of links that end with a double backslashes. (Issue #510)
• Fixed an issue where fence length wasn't computed. (PR #505)
• Improved the default value for the HTMLRendererParameters.FootnoteReturnLinkContents field. (PR #547)