docs: add Xite to users list

[shashankkoppar]

We use superset in our company for quite a while now and would like to be there as one of users!

[codecov-io]

Codecov Report

Merging #11775 (9c51b34) into master (db73869) will decrease coverage by 12.17%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master   #11775       +/-   ##
===========================================
- Coverage   67.20%   55.03%   -12.18%     
===========================================
  Files         903      411      -492     
  Lines       43719    14521    -29198     
  Branches     4199     3725      -474     
===========================================
- Hits        29380     7991    -21389     
+ Misses      14235     6530     -7705     
+ Partials      104        0      -104     

Flag	Coverage Δ
cypress	55.03% <ø> (-0.01%)	⬇️
javascript	?
python	?

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

Impacted Files	Coverage Δ
...uperset-frontend/src/dashboard/util/dnd-reorder.js	0.00% <0.00%> (-100.00%)	⬇️
...rset-frontend/src/dashboard/util/getEmptyLayout.js	0.00% <0.00%> (-100.00%)	⬇️
...dashboard/components/resizable/ResizableHandle.jsx	0.00% <0.00%> (-100.00%)	⬇️
.../src/dashboard/util/getFilterScopeFromNodesTree.js	0.00% <0.00%> (-93.48%)	⬇️
...src/dashboard/components/gridComponents/Header.jsx	10.52% <0.00%> (-86.85%)	⬇️
...rc/dashboard/components/gridComponents/Divider.jsx	13.33% <0.00%> (-86.67%)	⬇️
...ontend/src/dashboard/util/getDashboardFilterKey.ts	14.28% <0.00%> (-85.72%)	⬇️
...nd/src/views/CRUD/data/query/QueryPreviewModal.tsx	14.70% <0.00%> (-82.97%)	⬇️
...set-frontend/src/views/CRUD/welcome/EmptyState.tsx	5.71% <0.00%> (-82.10%)	⬇️
...et-frontend/src/components/ListView/ActionsBar.tsx	11.11% <0.00%> (-81.20%)	⬇️
... and 747 more

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[willbarrett]

Awesome @shashankkoppar ! Go ahead and add yourself in alphabetical order and this will be good to merge!

[shashankkoppar]

Ah okay! doing it! :)

[mistercrunch]

Welcome aboard!