Add Harvard IQSS to ruleset

[emkll]

Status

Ready for review
Closes #13

Review Checklist

• Changes to onboarded.txt are accurate
• The file default.rulesets.TIMESTAMP.gz has been updated, extracting that file and inspecting the contents of the JSON file produces the expected rules
• The ruleset has been verified by modifying the HTTPS Everywhere configuration in a Tor Browser instance pointing to Path Prefix: https://raw.githubusercontent.com/freedomofpress/securedrop-https-everywhere-ruleset/$BRANCH_NAME
• index.html has been updated using ./update_index.sh

[eloquence]

Note that the organization in question has its homepage at https://www.iq.harvard.edu/ . We're still waiting for freedomofpress/securedrop.org#761 to land; once it does, we may want to update the organization URL for the directory entry, and here as well.

[eloquence]

• Changes to onboarded.txt are accurate
• The file default.rulesets.TIMESTAMP.gz has been updated, extracting that file and inspecting the contents of the JSON file produces the expected rules
• The ruleset has been verified by modifying the HTTPS Everywhere configuration in a Tor Browser instance pointing to Path Prefix: https://raw.githubusercontent.com/freedomofpress/securedrop-https-everywhere-ruleset/$BRANCH_NAME
• index.html has been updated using ./update_index.sh

LGTM!

[eloquence]

Approved.