Adding information about the docker building script to the documentation

[JanuszJakubiec]

Adding a tutorial on how to build and run the docker image using the newly added script.

[mongoose-im]

small_tests_24 / small_tests / 573b8ca
Reports root / small

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small_tests_25_arm64 / small_tests / 573b8ca
Reports root / small

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small_tests_25 / small_tests / 573b8ca
Reports root / small

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ldap_mnesia_24 / ldap_mnesia / 573b8ca
Reports root/ big
OK: 2222 / Failed: 0 / User-skipped: 834 / Auto-skipped: 0

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dynamic_domains_pgsql_mnesia_24 / pgsql_mnesia / 573b8ca
Reports root/ big
OK: 4194 / Failed: 0 / User-skipped: 88 / Auto-skipped: 0

---

ldap_mnesia_25 / ldap_mnesia / 573b8ca
Reports root/ big
OK: 2222 / Failed: 0 / User-skipped: 834 / Auto-skipped: 0

---

dynamic_domains_pgsql_mnesia_25 / pgsql_mnesia / 573b8ca
Reports root/ big
OK: 4194 / Failed: 0 / User-skipped: 88 / Auto-skipped: 0

---

pgsql_mnesia_24 / pgsql_mnesia / 573b8ca
Reports root/ big
OK: 4567 / Failed: 0 / User-skipped: 97 / Auto-skipped: 0

---

elasticsearch_and_cassandra_25 / elasticsearch_and_cassandra_mnesia / 573b8ca
Reports root/ big
OK: 2728 / Failed: 0 / User-skipped: 667 / Auto-skipped: 0

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dynamic_domains_mysql_redis_25 / mysql_redis / 573b8ca
Reports root/ big
OK: 4168 / Failed: 0 / User-skipped: 114 / Auto-skipped: 0

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internal_mnesia_25 / internal_mnesia / 573b8ca
Reports root/ big
OK: 2368 / Failed: 0 / User-skipped: 688 / Auto-skipped: 0

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dynamic_domains_mssql_mnesia_25 / odbc_mssql_mnesia / 573b8ca
Reports root/ big
OK: 4191 / Failed: 0 / User-skipped: 91 / Auto-skipped: 0

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mysql_redis_25 / mysql_redis / 573b8ca
Reports root/ big
OK: 4553 / Failed: 0 / User-skipped: 111 / Auto-skipped: 0

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pgsql_mnesia_25 / pgsql_mnesia / 573b8ca
Reports root/ big
OK: 4567 / Failed: 0 / User-skipped: 97 / Auto-skipped: 0

---

mssql_mnesia_25 / odbc_mssql_mnesia / 573b8ca
Reports root/ big
OK: 4564 / Failed: 0 / User-skipped: 100 / Auto-skipped: 0

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.04 ⚠️

Comparison is base (e421b90) 82.19% compared to head (573b8ca) 82.16%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4030      +/-   ##
==========================================
- Coverage   82.19%   82.16%   -0.04%     
==========================================
  Files         535      535              
  Lines       33841    33841              
==========================================
- Hits        27817    27806      -11     
- Misses       6024     6035      +11     

see 9 files with indirect coverage changes

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[chrzaszcz]

Looks good 👍