Remove backslash and add backticks for required header in 2 CRT references

Author: Rageking8

docs/c-runtime-library/reference/islower-iswlower-islower-l-iswlower-l.md

@@ -63,10 +63,10 @@ By default, this function's global state is scoped to the application. To change
 
 | Routine | Required header |
 |---|---|
-| **`islower`** | \<ctype.h> |
-| **`iswlower`** | \<ctype.h> or \<wchar.h> |
-| **`_islower_l`** | \<ctype.h> |
-| **`_swlower_l`** | \<ctype.h> or \<wchar.h> |
+| **`islower`** | `<ctype.h>` |
+| **`iswlower`** | `<ctype.h>` or `<wchar.h>` |
+| **`_islower_l`** | `<ctype.h>` |
+| **`_swlower_l`** | `<ctype.h>` or `<wchar.h>` |
 
 For more compatibility information, see [Compatibility](../compatibility.md).
 

docs/c-runtime-library/reference/mbsnbset-s-mbsnbset-s-l.md

@@ -95,8 +95,8 @@ By default, this function's global state is scoped to the application. To change
 
 | Routine | Required header |
 |---|---|
-| **`_mbsnbset_s`** | \<mbstring.h> |
-| **`_mbsnbset_s_l`** | \<mbstring.h> |
+| **`_mbsnbset_s`** | `<mbstring.h>` |
+| **`_mbsnbset_s_l`** | `<mbstring.h>` |
 
 For more compatibility information, see [Compatibility](../compatibility.md).