Master is failing

[vbatts]

https://travis-ci.org/opencontainers/image-spec/builds/209076959

The command "make test" exited with 0.
29.17s$ make docs
Unable to find image 'vbatts/pandoc:1.16.0.2-1.fc24' locally
1.16.0.2-1.fc24: Pulling from vbatts/pandoc
Status: Downloaded newer image for vbatts/pandoc:1.16.0.2-1.fc24
pandoc: Duplicate link reference `[rfc1952]' "source" (line 1044, column 1)
! Package inputenc Error: Unicode char \u8:₀ not set up for use with LaTeX.
See the inputenc package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.1840 \end{verbatim}
Try running pandoc with --latex-engine=xelatex.
pandoc: Error producing PDF
make: *** [output//oci-image-spec.pdf] Error 43
The command "make docs" exited with 2.

assigning this to myself to get pandoc playing nice with the characters introduced in @stevvooe chainID PR

[stevvooe]

This is definitely from #586. Apologies.

[vbatts]

@stevvooe it's cool. rather than fix the characters, i'm working on adding the deps needed for xelatex and update pandoc