Corrected PCEtutorial notebook

[FrederikZa]

I corrected the broken notebook in examples/PCEtutorials.

[codecov-commenter]

Codecov Report

Merging #36 into master will decrease coverage by 4.31%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #36      +/-   ##
==========================================
- Coverage   75.43%   71.11%   -4.32%     
==========================================
  Files          16       16              
  Lines         741      786      +45     
==========================================
  Hits          559      559              
- Misses        182      227      +45     

Impacted Files	Coverage Δ
src/densities.jl	65.21% <0.00%> (-13.73%)	:arrow_down:
src/polynomial_chaos.jl	15.75% <0.00%> (-3.58%)	:arrow_down:
src/typesMeasures.jl	92.85% <0.00%> (-3.44%)	:arrow_down:
src/evaluate.jl	58.53% <0.00%> (-3.01%)	:arrow_down:
src/show.jl	20.27% <0.00%> (-2.81%)	:arrow_down:
src/recurrence_coefficients_monic.jl	88.73% <0.00%> (-1.27%)	:arrow_down:
src/typesOrthoPolys.jl	92.40% <0.00%> (-1.19%)	:arrow_down:

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 90fde15...542fb59. Read the comment docs.

[timueh]

how come the code coverage decreases when changing just a notebook?!.. wonder

[timueh]

in any case.. we need to convert the notebook to markdown to make it visible on the website. I wrote a script for that, see here:

https://github.com/timueh/PolyChaos.jl/blob/476523f7402e396f26d2140f67d199d52cb5c00a/docs/src/conversion.jl#L157-L166

can you try it out?

[timueh]

of course, if there are but a few changes and if you're short in time, then just change the markdown by hand:

https://github.com/timueh/PolyChaos.jl/blob/master/docs/src/pce_tutorial.md

;)

[timueh]

closed with #5ef06db