Update introduction_to_react.md

react/introduction/introduction_to_react.md

@@ -42,7 +42,7 @@ To name a few reasons to learn React:
 
 1. Glance at this article which outlines [the history of React](https://blog.risingstack.com/the-history-of-react-js-on-a-timeline/).
 
-1.Read this [FreeCodeCamp article discussing the differences between a JavaScript library and a framework](https://www.freecodecamp.org/news/the-difference-between-a-framework-and-a-library-bd133054023f/).
+1. Read this [FreeCodeCamp article discussing the differences between a JavaScript library and a framework](https://www.freecodecamp.org/news/the-difference-between-a-framework-and-a-library-bd133054023f/).
 
 1. Lastly, skim this article which explains the [main advantages of using React](https://www.geeksforgeeks.org/what-are-the-advantages-of-react-js/).