more detailed .env.slic.local in readme

README.md

@@ -265,8 +265,9 @@ jobs:
 The `slic` CLI command leverages `.env.*` files to dictate its inner workings. It loads `.env.*` files in the following order, the later files overriding the earlier ones:
 
 1. [`.env.slic`](/.env.slic) - this is the default `.env` file and **should not be edited**.
-2. `.env.slic.local` - this file doesn't exist by default, but if you wish to make overrides to the default, create it and add lines to your heart's content.
-3. `.env.slic.run` - this file is generated by `slic` and includes settings that are set by specific `slic` commands.
+2. `.env.slic.local` in the main _slic_ directory - this file doesn't exist by default. Make overrides to all your projects (e.g. `SLIC_GIT_HANDLE`) by creating it and adding lines to your heart's content.
+3. `.env.slic.local` in your _target's_ directory - this file doesn't exist by default. Make overrides to a single project (e.g. `SLIC_PHP_VERSION`).
+4. `.env.slic.run` - this file is generated by `slic` and includes settings that are set by specific `slic` commands.
 
 ### Xdebug and `slic`