Merge pull request #57 from githubtraining/update-course-details

Update course details

Author: lmkeston

config.yml

@@ -1,5 +1,4 @@
 title: Introduction to React
-tagline: Take your first steps in modern frontend development
 description: In this course, you will learn the basics of React.js through building a gradebook web application to manage assignments, students, and grades.
 template:
   name: intro-react

course-details.md

@@ -12,17 +12,42 @@ If you understand the topics above, you can start learning modern frontend devel
 
 So why do we learn React?
 
-React has growing popularity in the tech industry because of its simplicity. With a simple knowledge of HTML and JavaScript, picking up React shouldn't be too bad.
+React has growing popularity in the tech industry because of its simplicity. With a simple knowledge of HTML and JavaScript, picking up React won't be too difficult.
 
-### What we will be building
 
-So what are we going to be building today? We are going to build a gradebook for teachers! Take a look at [our solution](https://githubtraining.github.io/react-solution/) to see how the finished app looks.
+## What you'll learn
 
-You will be able to add assignments:
-![Finished Assignments](https://user-images.githubusercontent.com/25253905/61293228-11f26580-a788-11e9-90ac-9612c2bddf6b.png)
+We'll answer common questions like:
+- How do you setup a React project?
+- What is a component and how are they used?
+- How do you add components?
+- How is data passed to child components?
+- How are state variables created and used?
+- What is a callback function and how is it used to communicate data?
 
-You will be able to add students:
-![Finished Students](https://user-images.githubusercontent.com/25253905/61293769-46b2ec80-a789-11e9-88b3-c660f436f5bf.png)
+And when you're done you'll be able to:
+- Setup a React project
+- Add and use components
+- Pass data to child components
+- Use state variables
+- Use callback functions to communicate data
 
-You will be able to assign grades to those students for each assignment:
-![Finished Grades](https://user-images.githubusercontent.com/25253905/61295315-9810ab00-a78c-11e9-8bcb-f3e3bb87b2be.png)
+## What you'll build
+We'll be building a gradebook for teachers!
+![gradebook](https://user-images.githubusercontent.com/57373296/75573382-b92bc080-5a2a-11ea-87f8-afa4effedaa3.gif)
+
+- Completed [source repository](https://github.com/githubtraining/react-course)
+- Completed [Gradebook](https://githubtraining.github.io/react-solution/).
+
+## Prerequisites
+Before starting this course, we recommend:
+- Completing the [Introduction to GitHub Learning Lab](https://lab.github.com/githubtraining/introduction-to-github) with the option for working locally in the command line.  
+- Completing the [Introduction to HTML Learning Lab](https://lab.github.com/githubtraining/introduction-to-html/)
+
+
+## Projects used
+- This course uses [node.js](https://nodejs.org/en/download/) We'll install this as part of the first step in the course.
+
+## Audience
+
+New developers, new GitHub users, users new to Git, students, teams