impr(clipboard): iframe allow attributes in README

[paulsouche]

impr(clipboard): iframe allow attributes in README #31

Description

Add <iframe> mandatory attributes in README

Submission

• [X] Your branch is based on master
• [X] Your code is unit tested
• [X] CircleCI builds are green (coverage and lint)
• [X] Add team "CTI" as "Reviewer" for the PR
• [X] Name your PR with the convention fix|feat|impr(<subject>): description.

[hereismass-bot]

The code coverage of this PR is 99.21% :white_check_mark: Coverage for master is 99.21%.

[hereismass-bot]

The code coverage of this PR is 99.21% :white_check_mark: Coverage for master is 99.21%.

[hereismass-bot]

The code coverage of this PR is 99.21% :white_check_mark: Coverage for master is 99.21%.