Merge pull request graphql#1013 from tlblessing/patch-1

Update Introduction.md

Author: orta

src/content/learn/Introduction.md

@@ -7,11 +7,18 @@ permalink: /learn/
 next: /learn/queries/
 ---
 
-> Learn about GraphQL, how it works, and how to use it in this series of articles. Looking for documentation on how to build a GraphQL service? There are libraries to help you implement GraphQL in [many different languages](/code/). For an in-depth learning experience with practical tutorials, visit the [How to GraphQL](https://www.howtographql.com) fullstack tutorial website. We have also partnered with edX to create a free online course, [Exploring GraphQL: A Query Language for APIs](https://www.edx.org/course/exploring-graphql-a-query-language-for-apis).
+> Learn about GraphQL, how it works, and how to use it. Looking for documentation on how to build a GraphQL service? 
+> There are libraries to help you implement GraphQL in [many different languages](/code/). For an in-depth learning experience 
+> with practical tutorials, see [How to GraphQL](https://www.howtographql.com). Check out the 
+> free online course, 
+> [Exploring GraphQL: A Query Language for APIs](https://www.edx.org/course/exploring-graphql-a-query-language-for-apis).
 
-GraphQL is a query language for your API, and a server-side runtime for executing queries by using a type system you define for your data. GraphQL isn't tied to any specific database or storage engine and is instead backed by your existing code and data.
+GraphQL is a query language for your API, and a server-side runtime for executing queries using a type system you define for your 
+data. GraphQL isn't tied to any specific database or storage engine and is instead backed by your existing code and data.
 
-A GraphQL service is created by defining types and fields on those types, then providing functions for each field on each type. For example, a GraphQL service that tells us who the logged in user is (`me`) as well as that user's name might look something like this:
+A GraphQL service is created by defining types and fields on those types, then providing functions for each field on each type. 
+For example, a GraphQL service that tells you who the logged in user is (`me`) as well as that user's name might look 
+like this:
 
 ```graphql
 type Query {
@@ -36,9 +43,11 @@ function User_name(user) {
 }
 ```
 
-Once a GraphQL service is running (typically at a URL on a web service), it can receive GraphQL queries to validate and execute. A received query is first checked to ensure it only refers to the types and fields defined, then runs the provided functions to produce a result.
+After a GraphQL service is running (typically at a URL on a web service), it can receive GraphQL queries to validate and execute. 
+The service first checks a query to ensure it only refers to the types and fields defined, and then runs the provided functions 
+to produce a result.
 
-For example the query:
+For example, the query:
 
 ```graphql
 {
@@ -48,7 +57,7 @@ For example the query:
 }
 ```
 
-Could produce the JSON result:
+Could produce the following JSON result:
 
 ```json
 {
@@ -58,4 +67,4 @@ Could produce the JSON result:
 }
 ```
 
-Learn more about GraphQL — the query language, type system, how the GraphQL service works, as well as best practices for using GraphQL in the articles written in this section; they help to solve common problems.
+To learn more, click **Continue Reading**.