add links to ef core breaking changes (#47926)

Author: gewarren

docs/core/compatibility/10.0.md

@@ -50,6 +50,10 @@ If you're migrating an app to .NET 10, the breaking changes listed here might af
 | [System.Linq.AsyncEnumerable included in core libraries](core-libraries/10.0/asyncenumerable.md) | Source incompatible | Preview 1 |
 | [YMM embedded rounding removed from AVX10.2](core-libraries/10.0/ymm-embedded-rounding.md) | Behavioral change | Preview 5 |
 
+## Entity Framework Core
+
+[Breaking changes in EF Core 10](/ef/core/what-is-new/ef-core-10.0/breaking-changes)
+
 ## Extensions
 
 | Title | Type of change      | Introduced version |

docs/core/compatibility/9.0.md

@@ -68,6 +68,10 @@ If you're migrating an app to .NET 9, the breaking changes listed here might aff
 |-----------------------------------------------------------------------------------------------------|---------------------|--------------------|
 | [Deprecated desktop Windows/macOS/Linux MonoVM runtime packages](deployment/9.0/monovm-packages.md) | Source incompatible | Preview 7          |
 
+## Entity Framework Core
+
+[Breaking changes in EF Core 9](/ef/core/what-is-new/ef-core-9.0/breaking-changes)
+
 ## Interop
 
 | Title                                                  | Type of change      | Introduced version |

docs/core/compatibility/toc.yml

@@ -68,6 +68,8 @@ items:
                 href: cryptography/10.0/x500distinguishedname-validation.md
               - name: X509Certificate and PublicKey key parameters can be null
                 href: cryptography/10.0/x509-publickey-null.md
+          - name: Entity Framework Core
+            href: /ef/core/what-is-new/ef-core-10.0/breaking-changes?toc=/dotnet/core/compatibility/toc.json&bc=/dotnet/breadcrumb/toc.json
           - name: Extensions
             items:
               - name: Message no longer duplicated in Console log output