Update README.md

Author: sofietoft

16/umbraco-cms/fundamentals/setup/upgrading/README.md

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-description: Choose the guide fitting your upgrade situation and learn more about the recommended approach.
+description: Select the guide that fits your upgrade situation and learn more about the recommended approach.
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 # Upgrade your project
 
 In this section, you will find everything you need to upgrade your Umbraco CMS project.
 
-Before upgrading, it is recommended to **read the introduction to [upgrades in Umbraco](./upgrade-introduction.md)**. This will give you an understanding of what goes on and the different topics you need to consider.
+Before upgrading, it is recommended to **read the introduction to [upgrades in Umbraco](./upgrade-introduction.md)**. This provides an understanding of what happens and the different topics you need to consider.
 
 ## Upgrade Guides