Small documentation improvements (#408)

doc: add syntax highlighting to std::ptr::NullablePtr example, fix description of type::escape_bytes

Co-authored-by: paxcut <53811119+paxcut@users.noreply.github.com>

Author: C3pa

includes/std/ptr.pat

@@ -47,9 +47,9 @@ namespace auto std::ptr {
     Example:
     A struct field called `p_myInfo` which is a nullable 64-bit pointer to an
     element of type `MyInfoTy` would be written as:
-    ```
+    ```rust
     struct MyStruct {
-      std::ptr::NullablePtr<MyInfoTy, u64> p_myInfo;
+        std::ptr::NullablePtr<MyInfoTy, u64> p_myInfo;
     }
     ```
     */

includes/type/magic.pat

@@ -11,7 +11,7 @@ namespace auto type
 {
 
     /**
-        Escapes all bytes in a string to only contain printable characters. All non-printable bytes will be transformed to sequences in the form form \xFF
+        Escapes all bytes in a string to only contain printable characters. All non-printable bytes will be transformed to sequences in the \xFF form
         @param value Byte array to escape
         @return Escaped string
     */