Installing doctrine guide

[Howriq]

No description provided.

[alexmerlin]

@arhimede These tutorials should be docs only or need to provide code as well? 🤔
I mean provide modifications in composer.json, add doctrine config file etc...

[arhimede]

@arhimede These tutorials should be docs only or need to provide code as well? 🤔 I mean provide modifications in composer.json, add doctrine config file etc...

Should be both code and docs.
Mostly code, each chapter in its own branch