Wrong file in Instructions.

Hello. Instructions read:

```
$ wget https://github.com/lopes/netbox-scanner/archive/**master.zip**
$ unzip **netbox-scanner-master.zip** -d netbox-scanner
$ cd netbox-scanner
$ python3 -m venv venv
$ source venv/bin/activate
$ pip install -r requirements.txt

```

The downloaded file is master.zip, not netbox-scanner-master.zip.