Update script syntax in README

[Corkster919]

What did you do? (required. The issue will be closed when not provided.)

Followed installation instructions for GO / bash to fetch nvd data

What did you expect to happen?

run bash command as expected

What happened instead?

syntax failures

• Corrected Output By me

Update README file to replace the following FAILING string:
for i in seq 2002 $(date +"%Y"); do go-cve-dictionary fetch nvd --years $i; done

with WORKING script:
for i in $(seq 2002 "$(date +"%Y")"); do go-cve-dictionary fetchnvd --years "$i"; done

[Corkster919]

This shell (*remove .txt extension) worked for me to populate CVEs

cve_shell.sh.txt

[MaineK00n]

With this PR, the --years option has been deprecated.
#214