v0.10.67

Franklin v0.10.67

Diff since v0.10.66

Closed issues:

• Beta testers for Xranklin (#863)
• Quadruple backticks are parsed incorrectly (#938)
• Latex formula is not displaying correctly (#941)
• CSS fails to load (#943)

Merged pull requests:

• Small addition to the documentation regarding Plots.jl (#942) (@davibarreira)