Add leading example sentence for warning references in range [C4201, C4230]

Author: Rageking8

docs/error-messages/compiler-warnings/compiler-warning-level-1-c4218.md

@@ -15,6 +15,8 @@ With the default Microsoft extensions (`/Ze`), you can declare a variable withou
 
 ## Example
 
+The following example generates C4218:
+
 ```cpp
 // C4218.c
 // compile with: /W4

docs/error-messages/compiler-warnings/compiler-warning-level-1-c4224.md

@@ -15,6 +15,8 @@ The identifier was previously used as a **`typedef`**. This causes a warning und
 
 ## Example
 
+The following example generates C4224:
+
 ```cpp
 // C4224.cpp
 // compile with: /Za /W1 /LD

docs/error-messages/compiler-warnings/compiler-warning-level-1-c4227.md

@@ -15,6 +15,8 @@ Using qualifiers like **`const`** or **`volatile`** with C++ references is an ou
 
 ## Example
 
+The following example generates C4227:
+
 ```cpp
 // C4227.cpp
 // compile with: /W1 /c

docs/error-messages/compiler-warnings/compiler-warning-level-1-c4228.md

@@ -15,6 +15,8 @@ Use of qualifiers like **`const`** or **`volatile`** after a comma when declarin
 
 ## Example
 
+The following example generates C4228:
+
 ```cpp
 // C4228.cpp
 // compile with: /W1

docs/error-messages/compiler-warnings/compiler-warning-level-1-c4229.md

@@ -15,6 +15,8 @@ Using a Microsoft modifier such as **`__cdecl`** on a data declaration is an out
 
 ## Example
 
+The following example generates C4229:
+
 ```cpp
 // C4229.cpp
 // compile with: /W1 /LD

docs/error-messages/compiler-warnings/compiler-warning-level-1-c4230.md

@@ -15,6 +15,8 @@ Using a qualifier before a Microsoft modifier such as **`__cdecl`** is an outdat
 
 ## Example
 
+The following example generates C4230:
+
 ```cpp
 // C4230.cpp
 // compile with: /W1 /LD

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4201.md

@@ -15,6 +15,8 @@ Under Microsoft extensions (/Ze), you can specify a structure without a declarat
 
 ## Example
 
+The following example generates C4201:
+
 ```cpp
 // C4201.cpp
 // compile with: /W4

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4202.md

@@ -15,6 +15,8 @@ An old-style function definition contains variable arguments. These definitions
 
 ## Example
 
+The following example generates C4202:
+
 ```c
 // C4202.c
 // compile with: /W4

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4204.md

@@ -15,6 +15,8 @@ With Microsoft extensions (/Ze), you can initialize aggregate types (arrays, str
 
 ## Example
 
+The following example generates C4204:
+
 ```c
 // C4204.c
 // compile with: /W4

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4205.md

@@ -15,6 +15,8 @@ With Microsoft extensions (/Ze), **`static`** functions can be declared inside a
 
 ## Example
 
+The following example generates C4205:
+
 ```c
 // C4205.c
 // compile with: /W4