chore(docs): update releasing docs

[amitmiran137]

SUMMARY

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #15040 (c35fc40) into master (1af91ed) will increase coverage by 0.29%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #15040      +/-   ##
==========================================
+ Coverage   77.31%   77.60%   +0.29%     
==========================================
  Files         966      966              
  Lines       49613    49615       +2     
  Branches     6311     6311              
==========================================
+ Hits        38356    38505     +149     
+ Misses      11056    10909     -147     
  Partials      201      201              

Flag	Coverage Δ
hive	?
mysql	81.63% <ø> (?)
postgres	81.64% <ø> (?)
presto	81.34% <ø> (?)
python	81.92% <ø> (+0.56%)	⬆️
sqlite	81.27% <ø> (?)

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

Impacted Files	Coverage Δ
superset/db_engines/hive.py	0.00% <0.00%> (-85.19%)	⬇️
superset/db_engine_specs/hive.py	70.32% <0.00%> (-17.08%)	⬇️
superset/utils/core.py	88.91% <0.00%> (+0.37%)	⬆️
superset/views/base_api.py	98.28% <0.00%> (+0.42%)	⬆️
superset/common/query_context.py	82.16% <0.00%> (+0.54%)	⬆️
superset/security/manager.py	91.57% <0.00%> (+0.54%)	⬆️
superset/utils/cache.py	74.25% <0.00%> (+0.99%)	⬆️
superset/db_engine_specs/postgres.py	96.96% <0.00%> (+1.01%)	⬆️
superset/connectors/sqla/models.py	89.57% <0.00%> (+1.42%)	⬆️
superset/db_engine_specs/mysql.py	94.28% <0.00%> (+1.42%)	⬆️
... and 15 more

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[villebro]

Thanks for fixing!