Update README.md

Minor grammar fix.

Author: Atlas48

README.md

@@ -9,7 +9,7 @@
 Rust port of popular [markdown-it.js](https://github.com/markdown-it/markdown-it) library.
 
 TL;DR:
- - if you want to get result *fast*, use [pulldown-cmark](https://github.com/raphlinus/pulldown-cmark)
+ - if you want to get results *fast*, use [pulldown-cmark](https://github.com/raphlinus/pulldown-cmark)
  - if you want to render GFM exactly like github, use [comrak](https://github.com/kivikakk/comrak)
  - if you want to define your own syntax (like `@mentions`, `:emoji:`, custom html classes), use this library