Edits to improve SEO and usability

Author: TimShererWithAquent

docs/code-quality/c26455.md

@@ -1,13 +1,14 @@
 ---
-description: "Learn more about: C26455 DEFAULT_CTOR_NOEXCEPT"
-title: C26455
+description: "Learn more about the C26455 DEFAULT_CTOR_NOEXCEPT C++ Core Guidelines Checker warning. Default constructors shouldn't do anything that can throw."
+title: C26455 DEFAULT_CTOR_NOEXCEPT
 ms.date: 12/14/2018
-ms.topic: "conceptual"
+ms.topic: reference
 f1_keywords: ["C26455"]
 helpviewer_keywords: ["C26455"]
 ms.assetid: 27e86063-d969-49d8-8912-dcc2dc57249f
 author: kylereedmsft
 ms.author: kylereed
+ms.custom: kr2b-contr-experiment
 ---
 # C26455 DEFAULT_CTOR_NOEXCEPT
 

docs/code-quality/c26456.md

@@ -1,13 +1,14 @@
 ---
-description: "Learn more about: C26456 DONT_HIDE_OPERATORS"
-title: C26456
+description: "Learn more about the C26456 DONT_HIDE_OPERATORS C++ Core Guidelines Checker warning. Hiding base methods is error prone and makes code harder to read."
+title: C26456 DONT_HIDE_OPERATORS
 ms.date: 12/14/2018
-ms.topic: "conceptual"
+ms.topic: reference
 f1_keywords: ["C26456"]
 helpviewer_keywords: ["C26456"]
 ms.assetid: 3a3ad636-0938-40b5-93ce-169322e2ff23
 author: kylereedmsft
 ms.author: kylereed
+ms.custom: kr2b-contr-experiment
 ---
 # C26456 DONT_HIDE_OPERATORS
 

docs/code-quality/c26476.md

@@ -1,14 +1,16 @@
 ---
-description: "Learn more about: C26476 USE_VARIANT"
-title: C26476
+description: "Learn more about the C26476 USE_VARIANT C++ Core Guidelines Checker warning. Use a type-safe alternative to union, which is preferred in modern code."
+title: C26476 USE_VARIANT
 ms.date: 12/14/2018
-ms.topic: "conceptual"
+ms.topic: reference
 f1_keywords: ["C26476"]
 helpviewer_keywords: ["C26476"]
 ms.assetid: bb2b3b26-9a84-4d81-8bae-ad9a5577c8a6
 author: kylereedmsft
 ms.author: kylereed
+ms.custom: kr2b-contr-experiment
 ---
+
 # C26476 USE_VARIANT
 
 `std::variant` provides a type-safe alternative to `union` and should be preferred in modern code.

docs/code-quality/c26477.md

@@ -1,13 +1,14 @@
 ---
-description: "Learn more about: C26477 USE_NULLPTR_NOT_CONSTANT"
-title: C26477
+description: "Learn more about the C26477 USE_NULLPTR_NOT_CONSTANT C++ Core Guidelines Checker warning. The nullptr value allows overloads with special null handling."
+title: C26477 USE_NULLPTR_NOT_CONSTANT
 ms.date: 12/14/2018
-ms.topic: "conceptual"
+ms.topic: reference
 f1_keywords: ["C26477"]
 helpviewer_keywords: ["C26477"]
 ms.assetid: d5395efc-5eb2-4e82-9b45-fcd5ff4577bf
 author: kylereedmsft
 ms.author: kylereed
+ms.custom: kr2b-contr-experiment
 ---
 # C26477 USE_NULLPTR_NOT_CONSTANT
 

docs/code-quality/c26486.md

@@ -1,13 +1,14 @@
 ---
-description: "Learn more about: C26486 LIFETIMES_FUNCTION_PRECONDITION_VIOLATION"
-title: C26486
+description: "Learn more about the C26486 LIFETIMES_FUNCTION_PRECONDITION_VIOLATION C++ Core Guidelines Checker warning. Don't pass an invalid pointer as a parameter."
+title: C26486 LIFETIMES_FUNCTION_PRECONDITION_VIOLATION
 ms.date: 12/14/2018
-ms.topic: "conceptual"
+ms.topic: reference
 f1_keywords: ["C26486"]
 helpviewer_keywords: ["C26486"]
 ms.assetid: d5395efc-5eb2-4e82-9b45-fcd5ff4577bf
 author: kylereedmsft
 ms.author: kylereed
+ms.custom: kr2b-contr-experiment
 ---
 # C26486 LIFETIMES_FUNCTION_PRECONDITION_VIOLATION