[BUG] Error when display("text/html", string) to embed raw HTML

[eisthf]

description

According to the document at http://weavejl.mpastell.com/stable/usage/: it should be possible to embed raw HTML using display() but the following error occurs:

ERROR: MethodError: no method matching show(::IOContext{Base.GenericIOBuffer{Array{UInt8,1}}}, ::MIME{Symbol("text/html")}, ::String)
Closest candidates are:
  show(::IO, !Matched::MIME{Symbol("text/plain")}, ::Any) at multimedia.jl:47
  show(::IO, ::MIME{Symbol("text/html")}, !Matched::Method) at methodshow.jl:340
  show(::IO, ::MIME{Symbol("text/html")}, !Matched::Base.MethodList) at methodshow.jl:393
  ...

versions

using InteractiveUtils; versioninfo():

julia> versioninfo()
Julia Version 1.5.0-beta1.0
Commit 6443f6c95a (2020-05-28 17:42 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-9.0.1 (ORCJIT, skylake)
Environment:
  JULIA_EDITOR = "C:\Users\Earth\AppData\Local\atom\app-1.47.0\atom.exe"  -a
  JULIA_NUM_THREADS = 8

using Pkg; Pkg.status():

Status `C:\Users\Earth\.julia\environments\v1.5\Project.toml`
  [c52e3926] Atom v0.12.11
  [336ed68f] CSV v0.6.2
  [717857b8] DSP v0.6.7
  [a93c6f00] DataFrames v0.21.1
  [31c24e10] Distributions v0.23.4
  [e5e0dc1b] Juno v0.8.2
  [5fb14364] OhMyREPL v0.5.5
  [9b87118b] PackageCompiler v1.1.1
  [b98c9c47] Pipe v1.3.0
  [f0f68f2c] PlotlyJS v0.13.1
  [91a5bcdd] Plots v1.3.6
  [438e738f] PyCall v1.91.4
  [295af30f] Revise v2.7.0
  [2913bbd2] StatsBase v0.33.0
  [44d3d7a6] Weave v0.10.2

minimum reproducible steps

# Test
! display("text/html", "Header from julia");

julia> weave("test.jmd", doctype="md2html", out_path = :pwd)
┌ Warning: ERROR: MethodError occurred, including output in Weaved document
└ @ Weave C:\Users\Earth\.julia\packages\Weave\AL87K\src\run.jl:248
[ Info: Report weaved to test.html
"D:\\work\\julia\\test.html"

[eisthf]

HTML string should have been wrapped in a HTML object as follows:
display("text/html", html"Header from julia"); or display("text/html", HTML("Header from julia"));

It would be nice if the example in the Weave document be updated accordingly.