Reword definition of masked types

Co-authored-by: Maria Elisabeth Schreiber <[email protected]>

docs/source/data/fragments.mdx

@@ -1055,7 +1055,7 @@ query GetPosts {
 
 Apollo Client provides robust TypeScript support for data masking. We've integrated data masking with [GraphQL Codegen](https://the-guild.dev/graphql/codegen) and the type format generated by its [Fragment Masking](https://the-guild.dev/graphql/codegen/plugins/presets/preset-client#fragment-masking) feature.
 
-Masked types don't include fields in your operation type that are part of a fragment spread. As an example, let's use the following query.
+Masked types don't include fields from fragment spreads. As an example, let's use the following query.
 
 ```graphql
 query GetCurrentUser {