Add more doc to setup development environment section

docs/development/getting-started.md

@@ -11,11 +11,14 @@ Only creating new database migrations requires installing the tool.
 
 ## Setup environment
 
-Copy `.env.example` to `.env` and adjust as needed.
-We used [`direnv`](direnv.net) to help setup required environment variables.
+Copy `.env.example` to `.env` and adjust as needed. Then run it via docker-compose.
+
+To run it without `docker-compose`, we recommend to use [`direnv`](https://github.com/direnv/direnv) to help setup required environment variables. Otherwise, expose `.env` variables to your system environment.
 
 By default, the local data is stored in `data.local`.
 
+And default domain is `http://*.localtest.me:8001` as value of PAGESHIP_HOST_PATTERN set in .env file
+
 ## Running in single site mode
 
 ```sh
@@ -38,4 +41,22 @@ Open the sites at `http://localtest.me:8000/` or `http://dev.localtest.me:8000/`
 go run ./cmd/controller start
 ```
 
-Setup pageship command to use `http://api.localtest.me:8001` as the API server.
+Setup pageship command to use `http://api.localtest.me:8001` as the API server with your github account.
+
+(Note: Must enter absolute path for `SSH Key file`)
+
+```sh
+go run ./cmd/pageship login
+
+GitHub user name: <your github user name>
+API server: http://api.localtest.me:8001
+SSH key file: /Home/yourUsername/.ssh/id_rsa
+
+```
+
+If you enter incorrect info and want to restore whole process please enter command:
+
+```sh
+go run ./cmd/pageship config reset
+
+```