BugFix: NoneType Error when using Input File

[MikeMeliz]

Description

Resolves #25, torcrawl.py was trying to canonical a non-existing URL.

How Has This Been Tested?

python torcrawl.py -i links.txt -w -v w/ two links inside links.txt
python torcrawl.py -u google.com -c -d 1 -w -v

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[sonarcloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud