Updated file to illustrate a GitHub bug.

The comment made on the Pull Request itself shows the code being commented on, and more importantly, correctly links the relative timestamp to https://github.com/vandrijevik/phone_numbers/pull/2#discussion_r18885527

However, the comment made directly on the commit does not show the code being commented on (which is okay), but has an incorrect link for the code location: `README.md:L33` links to https://github.com/vandrijevik/phone_numbers/commit/797584c208b625146522dfa652d6bcf18028f8c4#readme-md-P6 but it should link to https://github.com/vandrijevik/phone_numbers/commit/797584c208b625146522dfa652d6bcf18028f8c4#diff-04c6e90faac2675aa89e2176d2eec7d8R33 – the actual line being displayed.

Further, the link on the timestamp for the comment made directly on the commit shows the comment in the context of the Pull Request (https://github.com/vandrijevik/phone_numbers/pull/2#commitcomment-8168279) whereas linking to the comment in the context of the commit (https://github.com/vandrijevik/phone_numbers/commit/797584c208b625146522dfa652d6bcf18028f8c4#commitcomment-8168279) would be much more useful here (because that view shows the code being commented on).