#336: Update core/insert to more accurately reflect hash created by MSSQL

[rpazyaquian]

Original Problem

The docstring for korma.core/insert implies that the hash returned by MSSQL is {:generated_key <ID>} instead of #336 's reported {:generated_keys <ID>}.

Proposed Solution

Update the docstring to explicitly state that MSSQL returns a hash of {:generated_keys <ID>}.

Endpoint

korma.core/insert docstring accurately describes MSSQL's hash structure.

Changes

• 336 update core/insert to more accurately reflect hash created by MSSQL

[rpazyaquian]

This is my first contribution to the project. Please let me know if there is any particular process or guidelines I should follow.

[immoh]

Thank you!