found another typo (#10760)

<!--
  Have any questions? Check out the contributing docs at https://gatsby.app/contribute, or
  ask in this Pull Request and a Gatsby maintainer will be happy to help :)
-->

## Description

<!-- Write a brief description of the changes introduced by this PR -->

## Related Issues

<!--
  Link to the issue that is fixed by this PR (if there is one)
  e.g. Fixes #1234, Addresses #1234, Related to #1234, etc.
-->

Author: iadityavs

docs/docs/typography-js.md

@@ -8,7 +8,7 @@ Typography.js is a JavaScript library that enables you to define and explore the
 
 ## Installing the Typography plugin
 
-Gatsby has the plugin `gatsby-plugin-typography` to assist with introducting Typography.js library into your project.
+Gatsby has the plugin `gatsby-plugin-typography` to assist with introducing Typography.js library into your project.
 
 You can install the plugin and its peer dependencies into your project by running the command `npm install gatsby-plugin-typography react-typography typography --save`