Update readme

Tasks/5.Using volumes/README.md

@@ -1,17 +1,17 @@
 # Practice - using volumes
 
-Run a container "mypsql" using **postgres:12** with options to:
- - run the container in detached mode
- - pass an environment variable `POSTGRES_PASSWORD=secretpass`
- - create a named volume with `-v <name>:/var/lib/postgresql/data`
+Run a container **mypsql** using **postgres:12** with options to:
+ - run in detached mode
+ - pass the appropriate environment variable (find it on https://hub.docker.com/)
+ - use a named volume
 
-Run a shell in the container and use psql to add a table and a record:
+Run bash in the container and use psql to add a table and a record:
  - $ `psql -U postgres`
  - $ `create table public.films (id int PRIMARY KEY, name varchar(255));`
  - $ `insert into films(id, name) values(1, 'Some movie');`
 
-Exit the container and delete it. Run a new container with the same options. Use ***the same*** volume name to re-use the existing volume.
+Exit the container and delete it. Run a new container with the same options (use ***the same*** volume name).
 
-Run a shell inside the container and see if your data is still there:
+Run bash inside the new container and see if your data has survived:
  - $ `psql –U postgres`
  - $ `select * from public.films;`