Add blockquotes for error messages in range [C2981, C3010]

Author: Rageking8

docs/error-messages/compiler-errors-2/compiler-error-c2988.md

@@ -8,6 +8,6 @@ ms.assetid: c07ada8d-7cdf-4496-8656-cc3851e76b46
 ---
 # Compiler Error C2988
 
-unrecognizable template declaration/definition
+> unrecognizable template declaration/definition
 
 The template declaration does not parse correctly. Check delimiters.

docs/error-messages/compiler-errors-2/compiler-error-c2989.md

@@ -8,7 +8,7 @@ ms.assetid: 936303d8-eb3b-4746-82ec-2f18020a6f64
 ---
 # Compiler Error C2989
 
-'class' : class type has already been declared as a non-class type
+> 'class' : class type has already been declared as a non-class type
 
 The class generic or template redefines a non-template or non-generic class. Check header files for conflicts.
 

docs/error-messages/compiler-errors-2/compiler-error-c2990.md

@@ -8,7 +8,7 @@ ms.assetid: 674e9f6a-6743-4af0-a7ed-cbe11103a2f8
 ---
 # Compiler Error C2990
 
-'class' : non-class type as already been declared as a class type
+> 'class' : non-class type as already been declared as a class type
 
 The non generic or template class redefines a generic or template class. Check header files for conflicts.
 

docs/error-messages/compiler-errors-2/compiler-error-c2991.md

@@ -8,7 +8,7 @@ ms.assetid: a87e4404-26e8-4927-b3ee-5d02b3b8bee1
 ---
 # Compiler Error C2991
 
-redefinition of type parameter 'parameter'
+> redefinition of type parameter 'parameter'
 
 There was a type conflict between two generic or template definitions of `parameter`. When defining multiple generic or template parameters, you must use equivalent types.
 

docs/error-messages/compiler-errors-2/compiler-error-c2992.md

@@ -8,7 +8,7 @@ ms.assetid: 01b16447-43fe-4e91-9a5a-af884a166a31
 ---
 # Compiler Error C2992
 
-'class' : invalid or missing type parameter list
+> 'class' : invalid or missing type parameter list
 
 The class is preceded by a **`template`** or **generic** keyword with missing or invalid parameters.
 

docs/error-messages/compiler-errors-2/compiler-error-c2993.md

@@ -7,7 +7,7 @@ helpviewer_keywords: ["C2993"]
 ---
 # Compiler Error C2993
 
-'identifier' : illegal type for non-type template parameter 'parameter'
+> 'identifier' : illegal type for non-type template parameter 'parameter'
 
 - Prior to C++20, you cannot declare a template with a structure, class, or union argument. Pointers can be used in place of these types as template parameters.
 - Since C++20, structure, class, or unions *can* be used as non-type template parameters. A non-type template parameter can't be a rvalue reference type or a parameter pack of rvalue types.

docs/error-messages/compiler-errors-2/compiler-error-c2994.md

@@ -8,6 +8,6 @@ ms.assetid: b03570b5-e5fd-41d8-bdf1-dfadc2b1e116
 ---
 # Compiler Error C2994
 
-unnamed class in template parameter list
+> unnamed class in template parameter list
 
 You cannot use the **`class`** keyword as a template argument without specifying a class name.

docs/error-messages/compiler-errors-2/compiler-error-c2995.md

@@ -8,7 +8,7 @@ ms.assetid: a57cdfe0-b40b-4a67-a95c-1a49ace4842b
 ---
 # Compiler Error C2995
 
-'function' : function template has already been defined
+> 'function' : function template has already been defined
 
 Make sure that there is only one definition for each member function of a templated class.
 

docs/error-messages/compiler-errors-2/compiler-error-c2996.md

@@ -8,6 +8,6 @@ ms.assetid: f0ca9f8b-1751-4182-adab-1424f0c5e0c0
 ---
 # Compiler Error C2996
 
-'function' : recursive function template definition
+> 'function' : recursive function template definition
 
 A function definition attempts to instantiate its root templated class. Recursive template instantiations are not allowed.

docs/error-messages/compiler-errors-2/compiler-error-c3001.md

@@ -8,7 +8,7 @@ ms.assetid: d0e03478-1b44-47e5-8f5b-70415fa1f8bc
 ---
 # Compiler Error C3001
 
-'error_text' : expected an OpenMP directive name
+> 'error_text' : expected an OpenMP directive name
 
 The `omp` pragma must be followed by a directive.