docs: add chapter for volume handling

updated bookstack version in bash commands
adjusted Docker < 1.9 bash commands
white space adjustments

Author: JHenneberg

README.md

@@ -5,45 +5,64 @@
 ## Current Version: [0.29.3](https://github.com/SolidNerd/docker-bookstack/blob/master/Dockerfile)
 
 ### Changes
-In 0.28.0 we changed the container http port from 80 to 8080 to allow root privileges to be dropped 
+
+In 0.28.0 we changed the container http port from 80 to 8080 to allow root privileges to be dropped
 In 0.12.2 we removed `DB_PORT` . You can now specify the port via `DB_HOST` like `DB_HOST=mysql:3306`
 
 ### Quickstart
+
 With Docker Compose is a Quickstart very easy. Run the following command:
 
 ```
 docker-compose up
 ```
 
-and after that open your Browser and go to [http://localhost:8080](http://localhost:8080) .
+and after that open your Browser and go to [http://localhost:8080](http://localhost:8080) . You can login with username 'admin@admin.com' and password 'password'.
 
 ### Issues
 
 If you have any issues feel free to create an [issue on GitHub](https://github.com/solidnerd/docker-bookstack/issues).
 
 
 ### How to use the Image without Docker compose
+
+Note that if you want to use LDAP, `$` has to be escape like `\$`, i.e. `-e "LDAP_USER_FILTER"="(&(uid=\${user}))"`
+
 Networking changed in Docker v1.9, so you need to do one of the following steps.
 
 #### Docker < v1.9
+
 1. MySQL Container:
+
 ```bash
-docker run -d --name bookstack-mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=secret -e MYSQL_DATABASE=bookstack -e MYSQL_USER=bookstack -e MYSQL_PASSWORD=secret mysql:5.7.21
+docker run -d \
+-p 3306:3306 \
+-e MYSQL_ROOT_PASSWORD=secret \
+-e MYSQL_DATABASE=bookstack \
+-e MYSQL_USER=bookstack \
+-e MYSQL_PASSWORD=secret \
+--name bookstack_db \
+mysql:5.7.21
 ```
 2. BookStack Container:
+
 ```bash
-docker run --name my-bookstack -d --link bookstack-mysql:mysql -p 8080:8080 solidnerd/bookstack:0.29.3
+docker run -d --link bookstack_db_:mysql \
+-p 8080:8080 \
+--name bookstack_0.29.3 \
+solidnerd/bookstack:0.29.3
 ```
 
 #### Docker 1.9+
 
-1.Create a shared network:
+1. Create a shared network:
 
 ```bash
 docker network create bookstack_nw
 ```
 
-2.MySQL container :
+2. Run MySQL container :
+
 ```bash
 docker run -d --net bookstack_nw  \
 -e MYSQL_ROOT_PASSWORD=secret \
@@ -54,22 +73,30 @@ docker run -d --net bookstack_nw  \
  mysql:5.7.21
 ```
 
-
-3.Create BookStack Container
+3. Run BookStack Container
 
 ```bash
-docker run -d --net bookstack_nw  \
+docker run -d --net bookstack_nw \
 -e DB_HOST=bookstack_db:3306 \
 -e DB_DATABASE=bookstack \
 -e DB_USERNAME=bookstack \
 -e DB_PASSWORD=secret \
 -p 8080:8080 \
- solidnerd/bookstack:0.27.4-1
+--name="bookstack_0.29.3" \
+ solidnerd/bookstack:0.29.3
 ```
 
-After the steps you can visit [http://localhost:8080](http://localhost:8080) . You can login with username 'admin@admin.com' and password 'password'.
+#### Volumes
+To access your `.env` file and important bookstack folders on your host system change `<HOST>` in the following line to your host directory and add it then to your run command:
 
-Note that if you want to use LDAP, `$` has to be escape like `\$`, i.e. `-e "LDAP_USER_FILTER"="(&(uid=\${user}))"`
+```bash
+--mount type=bind,source=<HOST>/.env,target=/var/www/bookstack/.env \
+-v <HOST>:/var/www/bookstack/public/uploads \
+-v <HOST>:/var/www/bookstack/storage/uploads
+```
+In case of a windows host machine the .env file has to be already created in the host directory otherwise a folder named .env will be created.
+
+After these steps you can visit [http://localhost:8080](http://localhost:8080) . You can login with username 'admin@admin.com' and password 'password'.
 
 ### Inspiration