Fix version number in README.
Fix version number in README.

justindirose/normalize-scss,nabu1615/normalize-scss,JohnAlbin/normalize-scss,JohnAlbin/normalize-scss,webmarkelov/normalize-scss,nabu1615/normalize-scss,Alexdersan/normalize-scss,justindirose/normalize-scss,webmarkelov/normalize-scss,JohnAlbin/normalize-scss,Alexdersan/normalize-scss