use an svg in julia types example and fix an undef var bug

[KristofferC]

No description provided.

[codecov-io]

Codecov Report

Merging #52 into master will not change coverage.
The diff coverage is 0%.

@@           Coverage Diff           @@
##           master      #52   +/-   ##
=======================================
  Coverage   71.42%   71.42%           
=======================================
  Files           8        8           
  Lines         434      434           
=======================================
  Hits          310      310           
  Misses        124      124

Impacted Files	Coverage Δ
src/tikzdocument.jl	55.39% <0%> (ø)	⬆️

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[tpapp]

I wonder if it would make sense to define something like

function save_all(figname)
    pgf.save(figname * ".pdf", a)
    run(`pdf2svg $(figname * ".pdf") $(figname * ".svg")`)
    pgf.save(figname * ".tex", a)
    nothing
end

in the @setup of each file, for DRY.

[KristofferC]

Yeah, I agree.

[KristofferC]

added

[tpapp]

LGTM.