fix include links

Author: gewarren

xml/System/String.xml

@@ -6052,7 +6052,7 @@ Because neither Visual Basic nor C# can convert an integer array to an object ar
 
 This method uses the [composite formatting feature](/dotnet/standard/base-types/composite-formatting) to convert the value of an expression to its string representation and to embed that representation in a string.
 
-[!INCLUDE[simple-string-format](~/includes/remarks/System/String/simple-string-format.md)]
+[!INCLUDE[simple-string-format](~/includes/simple-string-format.md)]
 
 ## Example: Formatting a single argument
 
@@ -6156,7 +6156,7 @@ The index of a format item is not zero.</exception>
 
 This method uses the [composite formatting feature](/dotnet/standard/base-types/composite-formatting) to convert the value of four or more expressions to their string representations and to embed those representations in a string. Since the `args` parameter is marked with the <xref:System.ParamArrayAttribute?displayProperty=nameWithType> attribute, you can pass the objects to the method as individual arguments or as an <xref:System.Object> array.
 
-[!INCLUDE[simple-string-format](~/includes/remarks/System/String/simple-string-format.md)]
+[!INCLUDE[simple-string-format](~/includes/simple-string-format.md)]
 
 ## Example: Format more than three arguments
 
@@ -6716,7 +6716,7 @@ The index of a format item is less than zero, or greater than or equal to the le
 
 This method uses the [composite formatting feature](/dotnet/standard/base-types/composite-formatting) to convert the value of two expressions to their string representations and to embed those representations in a string.
 
-[!INCLUDE[simple-string-format](~/includes/remarks/System/String/simple-string-format.md)]
+[!INCLUDE[simple-string-format](~/includes/simple-string-format.md)]
 
 ## Example: Format two arguments
 
@@ -6913,7 +6913,7 @@ The index of a format item is not zero or one.</exception>
 
 This method uses the [composite formatting feature](/dotnet/standard/base-types/composite-formatting) to convert the value of three expressions to their string representations and to embed those representations in a string.
 
-[!INCLUDE[simple-string-format](~/includes/remarks/System/String/simple-string-format.md)]
+[!INCLUDE[simple-string-format](~/includes/simple-string-format.md)]
 
 ## Example: Format three arguments