Removed collectioncontains documentation as it's not there

docs/articles/nunit/writing-tests/assertions/classic-assertions/Assert.Contains.md

@@ -10,5 +10,3 @@ ClassicAssert.Contains(object anObject, ICollection collection,
 ```
 
 ## See Also
-
-* [CollectionContainsConstraint](xref:collectioncontainsconstraint)

docs/articles/nunit/writing-tests/constraints/AnyOfConstraint.md

@@ -4,7 +4,7 @@
 
 > [!NOTE]
 > Values provided must be as parameters to the method, not as e.g. a separate array. If you are instead looking
-> to see if a collection contains a value, see the [CollectionContains Constraint](xref:collectioncontainsconstraint).
+> to see if a collection contains a value, see the [SomeItems Constraint](xref:someitemsconstraint).
 
 ## Constructor
 

docs/articles/nunit/writing-tests/constraints/Constraints.md

@@ -21,7 +21,6 @@ Constraint Name                      |
 [AttributeExistsConstraint](AttributeExistsConstraint.md)        |
 [AnyOfConstraint](AnyOfConstraint.md)                  |
 [BinarySerializableConstraint](BinarySerializableConstraint.md)     |
-[CollectionContainsConstraint](CollectionContainsConstraint.md)     |
 [CollectionEquivalentConstraint](CollectionEquivalentConstraint.md)   |
 [CollectionOrderedConstraint](CollectionOrderedConstraint.md)      |
 [CollectionSubsetConstraint](CollectionSubsetConstraint.md)       |
@@ -77,7 +76,6 @@ Constraint Name                      |
 -------------------------------------|
 [AllItemsConstraint](AllItemsConstraint.md)               |
 [AnyOfConstraint](AnyOfConstraint.md)                  |
-[CollectionContainsConstraint](CollectionContainsConstraint.md)     |
 [CollectionEquivalentConstraint](CollectionEquivalentConstraint.md)   |
 [CollectionOrderedConstraint](CollectionOrderedConstraint.md)      |
 [CollectionSubsetConstraint](CollectionSubsetConstraint.md)       |

docs/articles/nunit/writing-tests/constraints/SomeItemsConstraint.md

@@ -1,8 +1,13 @@
+---
+uid: someitemsconstraint
+---
 # SomeItems Constraint
 
 `SomeItemsConstraint` applies a constraint to each item in an `IEnumerable`, succeeding if at least one of them
 succeeds. An exception is thrown if the actual value passed does not implement `IEnumerable`.
 
+This constraint will also cover `Contains` functionality. See examples below.
+
 ## Constructor
 
 ```csharp
@@ -13,6 +18,9 @@ SomeItemsConstraint(Constraint itemConstraint)
 
 ```csharp
 Has.Some...
+Has.Member(object)
+Contains.Item(object)
+Does.Contain(object)
 ```
 
 ## Modifiers
@@ -40,3 +48,11 @@ string[] sarray = new string[] { "a", "b", "c" };
 Assert.That(iarray, Has.Some.GreaterThan(2));
 Assert.That(sarray, Has.Some.Length.EqualTo(1));
 ```
+
+### Contains examples
+
+[!code-csharp[Collection Contains Examples](~/snippets/Snippets.NUnit/ConstraintExamples.cs#CollectionContainsExamples)]
+
+## Note
+
+`Has.Member()`, `Contains.Item()` and `Does.Contain()` work the same as `Has.Some.EqualTo()`.

docs/articles/nunit/writing-tests/constraints/toc.yml

@@ -16,8 +16,6 @@
   href: AttributeExistsConstraint.md
 - name: BinarySerializableConstraint
   href: BinarySerializableConstraint.md
-- name: CollectionContainsConstraint
-  href: CollectionContainsConstraint.md
 - name: CollectionEquivalentConstraint
   href: CollectionEquivalentConstraint.md
 - name: CollectionOrderedConstraint