Install libghc-http2-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-http2-doc
Description:
HTTP/2.0 library including frames and HPACK; documentation
This package provides a HTTP/2.0 library including frames and HPACK. Currently HTTP/2 16 framing and HPACK 10 is supported. . This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: https://github.com/kazu-yamamoto/http2
Version: 1.6.3-1build2
Section: universe/doc