htmltools 0.5.1

• Tag objects can now be used as context managers, as in with tags.div():. When used this way, then inside the with block, sys.displayhook is replaced with a function which adds items as children to the Tag. This is meant to be used with Shiny Express, Quarto, or Jupyter. (#76)

• Added a function wrap_displayhook_handler(). This alliows displayhooks to delegate their logic for handling various kinds of objects (like Tag objects and objects with a _repr_html()) to this function. (#77)