Update Introduction-IntroductionToRelay.md
Summary:
Removed an extra 'a' from the introduction to relay page.
Closes
@@ -4,7 +4,7 @@ title: Introduction to Relay
original_id: introduction-to-relay
---
-Relay is a a JavaScript framework for building data-driven React applications powered by GraphQL, designed from the ground up to be easy to use, extensible and, most of all, performant. Relay accomplishes this with static queries and ahead-of-time code generation.
+Relay is a JavaScript framework for building data-driven React applications powered by GraphQL, designed from the ground up to be easy to use, extensible and, most of all, performant. Relay accomplishes this with static queries and ahead-of-time code generation.
[React](https://facebook.github.io/react/) allows views to be defined as components where every component is responsible for rendering a part of the UI. Composing other components is how to build complex UIs. Each React component doesn't need to know the inner workings of the composed components.
