Add Panel Description

[MarcSkovMadsen]

Overview

Adds a description of using Lux and Panel together as requested in #384

Changes

I've added a Panel section to the export.rst file.
I've also sorted the data apps sections alphabetically.
My editor has also automatically removed a lot of unnecessary spaces.

Example Output

[MarcSkovMadsen]

I've now replaced the image url as requested.

[codecov]

Codecov Report

Merging #385 (03d31ba) into master (65fa234) will increase coverage by 0.07%.
The diff coverage is n/a.

❗ Current head 03d31ba differs from pull request most recent head 2e4da83. Consider uploading reports for the commit 2e4da83 to get more accurate results

@@            Coverage Diff             @@
##           master     #385      +/-   ##
==========================================
+ Coverage   84.79%   84.86%   +0.07%     
==========================================
  Files          52       52              
  Lines        4031     4031              
==========================================
+ Hits         3418     3421       +3     
+ Misses        613      610       -3     

Impacted Files	Coverage Δ
lux/core/frame.py	81.69% <ø> (ø)
lux/vislib/matplotlib/Heatmap.py	96.66% <0.00%> (ø)
lux/vislib/matplotlib/ScatterChart.py	76.47% <0.00%> (+1.17%)	⬆️
lux/vislib/altair/ScatterChart.py	96.96% <0.00%> (+3.03%)	⬆️
lux/vislib/altair/Heatmap.py	96.55% <0.00%> (+3.44%)	⬆️

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[dorisjlee]

Thanks for your contribution @MarcSkovMadsen! I just tested this out and the Panel integration is really cool!
I made a minor change to save_as_html so that the Lux logo links to a new tab, otherwise, your changes look great!

[MarcSkovMadsen]

Thanks @dorisjlee 👍

When you want to add support for big data to Lux checkout HoloViz DataShader.