Apply suggestions from code review

Author: RexJaeschke

standard/conversions.md

@@ -117,7 +117,7 @@ In most cases, an identity conversion has no effect at runtime. However, since f
 
 There is an identity conversion between `nint` and `System.IntPtr`, and between `nuint` and `System.UIntPtr`.
 
-For the compound types array, nullable type, constructed type, and tuple, there is an identity conversion between native integers ([§8.3.6]( types.md#836-integral-types)) and their underlying types.
+For the compound types array, nullable type, constructed type, and tuple, there is an identity conversion between native integers ([§8.3.6](types.md#836-integral-types)) and their underlying types.
 
 ### 10.2.3 Implicit numeric conversions
 

standard/types.md

@@ -321,13 +321,7 @@ Although `nint` and `nuint` shall be represented by the types `System.IntPtr` an
 
 Consider the following:
 
-<!-- Example: {template:"standalone-console-without-using", name:"SimpleTypes2", expectedErrors:["CS0266"], ignoredWarnings:["CS0219"]} -->
-```csharp
-nint a1 = 1;           // OK
-System.IntPtr a2 = 1;  // Error: no implicit conversion
-```
-
-While the implementation provides operations and conversions for `nint` and `nuint` that are appropriate for integer types, those operations and conversions are not available on the `System` type counterparts. Similarly,
+While the implementation provides operations and conversions for `nint` and `nuint` that are appropriate for integer types, those operations and conversions are not available on the `System` type counterparts. For example,
 
 <!-- Example: {template:"code-in-main-without-using", name:"SimpleTypes3", expectedException:"RuntimeBinderException"} -->
 ```csharp