message: docs: fix wording in 4-10
  PR Close
diff: @@ -3109,9 +3109,9 @@ module are referenced across the entire application.
  -**Avoid** providing services in shared modules. Services are usually
  +**Consider** _not_ providing services in shared modules. Services are usually
  singletons that are provided once for the entire application or
  -in a particular feature module.
  +in a particular feature module. There are exceptions, however. For example, in the sample code that follows, notice that the `SharedModule` provides `FilterTextService`. This is acceptable here because the service is stateless;that is, the consumers of the service aren't impacted by new instances.
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