docs: Fix typo in installing from scratch

[philipqnguyen]

Change "insode" to "inside".

Note:
Original PR was here #10985, but the CI seemed to continually be stuck even after multiple retries. So I'm trying again with a new PR and a new commit.

[nytai]

I'm still very confused about what's going on here, for some reason not all the checks are running

[philipqnguyen]

Ya, I'm at a loss as well @nytai. I guess you could make your own PR with this change separately to see if that works?

[nytai]

Yeah I'll open a PR, this probably isn't worth spending more time on

[nytai]

Ah, looks like the same thing happened on my PR. Looks like it's this filter here https://github.com/preset-io/incubator-superset/blob/master/.github/workflows/superset-python.yml#L9

[codecov-io]

Codecov Report

Merging #11026 into master will increase coverage by 8.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #11026      +/-   ##
==========================================
+ Coverage   65.86%   73.92%   +8.05%     
==========================================
  Files         826      444     -382     
  Lines       38976    14890   -24086     
  Branches     3669     3654      -15     
==========================================
- Hits        25671    11007   -14664     
+ Misses      13195     3786    -9409     
+ Partials      110       97      -13     

Flag	Coverage Δ
#cypress	56.07% <ø> (-0.50%)	⬇️
#javascript	62.63% <ø> (+0.42%)	⬆️
#python	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...uperset-frontend/src/components/ExpandableList.tsx	0.00% <0.00%> (-94.45%)	⬇️
...et-frontend/src/SqlLab/components/QueryHistory.jsx	50.00% <0.00%> (-33.34%)	⬇️
.../explore/components/controls/DatasourceControl.jsx	73.07% <0.00%> (-11.54%)	⬇️
.../src/explore/components/AdhocMetricEditPopover.jsx	69.86% <0.00%> (-10.91%)	⬇️
superset-frontend/src/SqlLab/components/App.jsx	69.23% <0.00%> (-8.55%)	⬇️
...src/SqlLab/components/ExploreCtasResultsButton.jsx	7.14% <0.00%> (-6.20%)	⬇️
...rontend/src/SqlLab/components/SqlEditorLeftBar.jsx	50.00% <0.00%> (-6.00%)	⬇️
...rontend/src/visualizations/FilterBox/FilterBox.jsx	60.49% <0.00%> (-5.56%)	⬇️
superset-frontend/src/common/components/Tabs.tsx	96.00% <0.00%> (-4.00%)	⬇️
...ntend/src/explore/components/AdhocFilterOption.jsx	80.64% <0.00%> (-3.98%)	⬇️
... and 517 more

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