Update step_by_step.md

Releases/0.0.6 (#18)

* Add files via upload

* Update connectorconf.py

* Update connectorconf.py

* Update connectorconf.py

* Add files via upload

* Update connectorconf.py

* Update connectorconf.py

* Update connectorconf.py

* Update connectorconf.py

* Update connectorconf.py

* Update raw_connectorconf.py

* Update connectorconf.py

* Update ld_connectorconf.py

* Add files via upload

* Update connectorconf.py

* Update connectorconf.py

* Update connectorconf.py

* Update connectorconf.py

* Update ld_connectorconf.py

* Update raw_connectorconf.py

* Add files via upload

* Update quick_start.md

* Update quick_start.md

Releases/0.0.4 (#17)

* Update actions.yml

* Update env_setup.sh

* Update prepare.sh

Improved subscribing tool

Adding NGSI-LD Support based on the parameter URL
Adding possibility to choose entity and attributes using numbers instead of names

Minor Version

Patching the configuration file and the number of concurrent connections to the main socket.
Fixed some minor documentation errors

Update README.md

Update README.md