v7.0.11

PlutoStaticHTML v7.0.11

Diff since v7.0.10

Updated Pluto to version 0.20.27 (the Pluto version is pinned because this package depends on Pluto internals).

Merged pull requests:

• Fix admonition header block in index.md (#216) (@abhro)
• Add/update syntax highlight tags to fenced code blocks (#217) (@abhro)
• Update Pluto to 0.20.27 (#220) (@rikhuijzer)