fix: update README file

README.md

@@ -24,7 +24,37 @@ The backend of https://lorem.space lives here.
 * `min-height`: minimum supported height (integer)
 * `max-height`: maximum supported height (integer)
 
+### Run binary
+To run built binary, visit the [release page](https://github.com/manasky/lorem-server/releases) & download your OS build file. Unzip the downloaded file & make sure about the file execution permissions, then run the app with the arguments in the terminal:
+
+* MacOS & Linux: `./lorem-server --host "127.0.0.1:8080" --dir "~/Pictures"`
+* Windows: `lorem-server.exe -host "127.0.0.1:8080" -dir "C:\Users\USER\Pictures`
 ### Docker
 You can pull & run the public docker image from github package registry:
 
 `$ docker pull ghcr.io/manasky/lorem-server:latest`
+
+#### Run docker image:
+To run the container you must pass the app arguments via the `.env` file. To this, create a file named `.env` & set the options in uppercase & snail case format.
+
+An example of .env file:
+```
+HOST=0.0.0.0:8080
+DIR=/app/images
+MIN_WIDTH=20
+```
+By this config, the app listens to port number `8080` on the host IP address and scan `/app/images/` path (from the container) for the images and limit the `width` size to a minimum of 20 pixels.
+
+##### Link directory
+Your images directory must link to the container, to this you can use -v arguments while running the container.
+
+#### Run command
+
+`$ docker run --env-file=./.env -p 8080:8080 -v ~/Pictures:/app/images ghcr.io/manasky/lorem-server:latest`
+
+* `--env-file` sets the application environment variables path. here `.env` file exists in the current path.
+* `-p 8080:8080` sets up a port forward. the application container will listen to the `8080` port (set in the .env file as `HOST`). this flag maps the container's port `8080` to port `8080` on the host (here, your localhost).
+* `~/Pictures:/app/images` sets up a bindmount volume that links the directory `/app/images` from inside the app container to the directory `~/Pictures` on the host machine (here, your system). The app image directory is set in the `.env` file as `/app/images`, so here the `~/Pictures` is mounted to that.
+
+
+After container running, the app will scan `/app/images` which is mounted to the directory `~/Pictures` of your system & serves the HTTP server on `127.0.0.1:8080`. Visit `127.0.0.1:8080/image` for start.