Screenshot in repo's `readme.md` file contains typo

[gitname]

The screenshot embedded in the repo's readme.md file (shown below) contains a typo.

The typo itself (which was reported in Issue #144) was fixed in Commit 81690e6.

The web page shown in the screenshot has the following URL:
https://docs.cypress.io/guides/getting-started/why-cypress.html#What-You’ll-Learn