Add "Remarks" and "Example" headings for error references in range [C2881, C2910]

Author: Rageking8

docs/error-messages/compiler-errors-2/compiler-error-c2881.md

@@ -10,8 +10,12 @@ ms.assetid: b49c63c2-b064-4d4b-a75e-ddd2af947522
 
 > 'namespace1' : is already used as an alias for 'namespace2'
 
+## Remarks
+
 You cannot use the same name as an alias for two namespaces.
 
+## Example
+
 The following sample generates C2881:
 
 ```cpp

docs/error-messages/compiler-errors-2/compiler-error-c2882.md

@@ -10,8 +10,12 @@ ms.assetid: 617018ee-5a0d-4b8d-9612-77e8ae52679b
 
 > 'name' : illegal use of namespace identifier in expression
 
+## Remarks
+
 You tried to use the name of a namespace in an expression.
 
+## Example
+
 The following sample generates C2882:
 
 ```cpp

docs/error-messages/compiler-errors-2/compiler-error-c2883.md

@@ -10,8 +10,12 @@ ms.assetid: 5c6d689d-ed42-41ad-b5c0-e9c2e0b8c356
 
 > 'name' : function declaration conflicts with 'identifier' introduced by using-declaration
 
+## Remarks
+
 You tried to define a function more than once. The first definition was made from a namespace with a **`using`** declaration. The second was a local definition.
 
+## Example
+
 The following sample generates C2883:
 
 ```cpp

docs/error-messages/compiler-errors-2/compiler-error-c2884.md

@@ -10,8 +10,12 @@ ms.assetid: 8b4d43e3-3fb5-4360-86c8-de59d8736d4f
 
 > 'name' : introduced by using-declaration conflicts with local function 'function'
 
+## Remarks
+
 You tried to define a function more than once. The first definition is a local definition. The second is from a namespace with a **`using`** declaration.
 
+## Example
+
 The following sample generates C2884:
 
 ```cpp

docs/error-messages/compiler-errors-2/compiler-error-c2885.md

@@ -10,6 +10,8 @@ ms.assetid: 7743e5f3-a034-44b4-9ee8-5a6254c27f8c
 
 > 'class::identifier' : not a valid using-declaration at non-class scope
 
+## Remarks
+
 You used a [using](../../cpp/using-declaration.md) declaration incorrectly.
 
 This error can be generated as a result of compiler conformance work that was done for Visual Studio 2005: it is no longer valid to have a **`using`** declaration to a nested type; you must explicitly qualify each reference you make to the nested type, put the type in a namespace, or create a typedef.

docs/error-messages/compiler-errors-2/compiler-error-c2886.md

@@ -10,8 +10,12 @@ ms.assetid: c01588a1-484c-4dc9-a3f1-f900c6e44543
 
 > 'class::identifier' : symbol cannot be used in a member using-declaration
 
+## Remarks
+
 A **`using`** declaration uses a symbol, such as a namespace name. A **`using`** declaration is for declaring base class members.
 
+## Example
+
 The following sample generates C2886:
 
 ```cpp

docs/error-messages/compiler-errors-2/compiler-error-c2888.md

@@ -9,8 +9,12 @@ helpviewer_keywords: ["C2888"]
 
 > 'identifier' : symbol cannot be defined within namespace 'namespace'
 
+## Remarks
+
 A symbol belonging to namespace A must be defined in a namespace that encloses A.
 
+## Example
+
 The following sample generates C2888:
 
 ```cpp

docs/error-messages/compiler-errors-2/compiler-error-c2890.md

@@ -10,8 +10,12 @@ ms.assetid: 49147375-182c-42b1-b170-f475cd436d47
 
 > 'class' : a ref class can only have one non-interface base class
 
+## Remarks
+
 A reference class can only have one base class.
 
+## Example
+
 The following sample generates C2890:
 
 ```cpp

docs/error-messages/compiler-errors-2/compiler-error-c2891.md

@@ -9,7 +9,13 @@ helpviewer_keywords: ["C2891"]
 
 > 'parameter' : cannot take the address of a template parameter
 
-You can't take the address of a template parameter unless it is an lvalue. Type parameters are not lvalues because they have no address. Non-type values in template parameter lists that are not lvalues also do not have an address. This is an example of code that causes Compiler Error C2891, because the value passed as the template parameter is a compiler-generated copy of the template argument.
+## Remarks
+
+You can't take the address of a template parameter unless it is an lvalue. Type parameters are not lvalues because they have no address. Non-type values in template parameter lists that are not lvalues also do not have an address.
+
+## Example
+
+This is an example of code that causes Compiler Error C2891, because the value passed as the template parameter is a compiler-generated copy of the template argument.
 
 ```cpp
 template <int i> int* f() { return &i; }

docs/error-messages/compiler-errors-2/compiler-error-c2892.md

@@ -10,8 +10,12 @@ ms.assetid: c22a5084-2f50-42c2-a56b-6dfe5442edc9
 
 > local class shall not have member templates
 
+## Remarks
+
 Templated member functions are not valid in a class that is defined in a function.
 
+## Example
+
 The following sample generates C2892:
 
 ```cpp