Better examples separation

[igor-dv]

Issue: I would like to have a better examples/documentation for the supported frameworks.

What I did

CC: #2885

[codecov]

Codecov Report

Merging #2918 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2918      +/-   ##
==========================================
+ Coverage   37.35%   37.37%   +0.01%     
==========================================
  Files         426      426              
  Lines        9150     9151       +1     
  Branches      884      883       -1     
==========================================
+ Hits         3418     3420       +2     
+ Misses       5182     5181       -1     
  Partials      550      550

Impacted Files	Coverage Δ
app/polymer/src/server/config/babel.prod.js	0% <ø> (ø)	⬆️
addons/background/src/BackgroundPanel.js	93.93% <0%> (+1.63%)	⬆️
addons/background/src/index.js	86.36% <0%> (+6.36%)	⬆️

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[igor-dv]

[igor-dv]

[tmeasday]

@igor-dv -- the snapshot changes are nothing to do with this branch; there's a problem with this technique of opening an iframe. See #2958 (comment)

[codecov-io]

Codecov Report

Merging #2918 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2918   +/-   ##
=======================================
  Coverage   37.35%   37.35%           
=======================================
  Files         426      426           
  Lines        9150     9150           
  Branches      881      884    +3     
=======================================
  Hits         3418     3418           
- Misses       5171     5174    +3     
+ Partials      561      558    -3

Impacted Files	Coverage Δ
app/vue/src/server/utils.js	0% <0%> (-100%)	⬇️
app/polymer/src/server/config/babel.js	0% <0%> (-100%)	⬇️
lib/ui/src/modules/ui/containers/stories_panel.js	27.02% <0%> (ø)	⬆️
...t-native/src/preview/components/StoryView/index.js	0% <0%> (ø)	⬆️
lib/ui/src/modules/ui/containers/search_box.js	23.52% <0%> (ø)	⬆️
addons/knobs/src/components/types/Boolean.js	11.62% <0%> (ø)	⬆️
lib/core/src/client/preview/reducer.js	37.5% <0%> (ø)	⬆️
addons/info/src/components/makeTableComponent.js	67.46% <0%> (ø)	⬆️
addons/a11y/src/components/Report/Info.js	0% <0%> (ø)	⬆️
lib/ui/src/modules/ui/containers/routed_link.js	22.72% <0%> (ø)	⬆️
... and 58 more

---

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[igor-dv]

Oh thanks, @Hypnosphi