[3of3]bin/convert-wrapper: workaround for sphinx.ext.imgconverter (Dockerfile)

This workaround exists because Sphinx wants to download the
TravisCI SVG badge (due to a URL listed in older documentation content),
but that URL is returning HTML content (maybe under HTTP/404) and the
Sphinx image processing terminates the documentation generation due
to an SVG parse error of the HTML document.

Ensure to use: source bin/setup_env.sh

Original patch split to help with cherry-pick into other branches.

Dockerfile

@@ -11,5 +11,8 @@ RUN apt-get update \
  && apt-get clean \
  && rm -rf /var/lib/apb/lists/*
 
+# source /docs/bin/setup_env.sh
+ENV PATH="$PATH:/docs/bin"
+
 ADD requirements.txt /docs
 RUN pip3 install -r requirements.txt

pdf.Dockerfile

@@ -17,5 +17,8 @@ RUN git config --global safe.directory '*'
 
 RUN npm i wavedrom-cli -g
 
+# source /docs/bin/setup_env.sh
+ENV PATH="$PATH:/docs/bin"
+
 ADD requirements.txt /docs
 RUN pip3 install -r requirements.txt