[#2] Update documentation Employee (#15)

* [#2] Update documentation Employee

* [#2] Update Employee - Add Database Employee

* [#3] Update Regions Documentation and add a figure of regions table (#16)

* [#3] Update Regions Documentation and add a figure of regions table

* [#3] Update Region Documentation based on review

* [#3] Update Region Documentation based on 2nd review

* [#3] add region code must be unique and remove the last line that does not need comma

* [#3] Update region-layer

* [#3] Rename regions.png to region-layer.png

* [#3] Remove company_code and kunci from regions table

* [#2] Update documentation Employee

* [#2] Update Employee - Add Database Employee

* [#2] Revise documentation Employee

* [#2] Update email Documentation

* [#2] Update email Documentation

* [#2] Completing documentation

Co-authored-by: Muhammad Sofi Yuniarto <[email protected]>