Merge pull request #110 from camptocamp/update-readme

Some update in the readme

README.md

@@ -7,33 +7,37 @@ directory. Either you create another image to add those files or you inject them
 a volume. For example:
 
 ```bash
-docker run -d -p 8380:80 --volume=$PWD/etc/qgisserver:/etc/qgisserver camptocamp/qgis-server
+docker run --detach --publish=8380:80 --volume=$PWD/etc/qgisserver:/etc/qgisserver camptocamp/qgis-server
 ```
+
 With the previous command, you'll get to your server with this URL:
 http://localhost:8380/?SERVICE=WMS&REQUEST=GetCapabilities
 
 ## Tuning
 
 You can use the following variables (`-e` option in `docker run`):
 
-* QGIS_SERVER_LOG_LEVEL: The debug level for the logs (0=max debug, 3=no debug logs)
-* PGSERVICEFILE: If you want to change the default of `/etc/qgisserver/pg_service.conf`
-* QGIS_PROJECT_FILE: If you want to change the default of `/etc/qgisserver/project.qgs`
-* QGIS_CATCH_SEGV: Set to "1" if you want stacktraces in the logs in case of segmentation faults.
-* FCGID_MAX_REQUESTS_PER_PROCESS: The number of requests a QGIS server will serve before being restarted by apache
-* FCGID_MIN_PROCESSES: The minimum number of fcgi processes to keep (defaults to 1)
-* FCGID_MAX_PROCESSES: The maximum number of fcgi processes to keep (defaults to 5)
-* FCGID_IO_TIMEOUT: This is the maximum period of time the module will wait while trying to read from or
-  write to a FastCGI application (default to 40)
-* FCGID_BUSY_TIMEOUT: The maximum time limit for request handling (defaults to 300)
-* FCGID_IDLE_TIMEOUT: Application processes which have not handled a request for
-  this period of time will be terminated (defaults to 300)
+-   `QGIS_SERVER_LOG_LEVEL`: The debug level for the logs (`0`=max debug, `3`=no debug logs)
+-   `PGSERVICEFILE`: If you want to change the default of `/etc/qgisserver/pg_service.conf`
+-   `QGIS_PROJECT_FILE`: If you want to change the default of `/etc/qgisserver/project.qgs`
+-   `QGIS_CATCH_SEGV`: Set to `1` if you want stacktraces in the logs in case of segmentation faults.
+-   `FCGID_MAX_REQUESTS_PER_PROCESS`: The number of requests a QGIS server will serve before being restarted by apache
+-   `FCGID_MIN_PROCESSES`: The minimum number of fcgi processes to keep (defaults to `1`)
+-   `FCGID_MAX_PROCESSES`: The maximum number of fcgi processes to keep (defaults to `5`)
+-   `FCGID_IO_TIMEOUT`: This is the maximum period of time the module will wait while trying to read from or
+    write to a FastCGI application (default to `40`)
+-   `FCGID_BUSY_TIMEOUT`: The maximum time limit for request handling (defaults to `300`)
+-   `FCGID_IDLE_TIMEOUT`: Application processes which have not handled a request for
+    this period of time will be terminated (defaults to `300`)
+
+[See also QGIS server documentation](https://docs.qgis.org/3.16/en/docs/server_manual/config.html?highlight=environment#environment-variables)
 
 Fonts present in the `/etc/qgisserver/fonts` directory will be installed and thus usable by QGIS.
 
 ## Running the client
 
 If you want to edit a project file, you can run the client from a Linux machine with the following command:
+
 ```bash
-docker run --rm -ti -e DISPLAY=unix${DISPLAY} -v /tmp/.X11-unix:/tmp/.X11-unix -v ${HOME}:${HOME} camptocamp/qgis-server:master-desktop
+docker run --rm -ti --env=DISPLAY=unix${DISPLAY} --volume=/tmp/.X11-unix:/tmp/.X11-unix --volume=${HOME}:${HOME} camptocamp/qgis-server:master-desktop
 ```