Improve link.
diff --git a/include/freetype/freetype.h b/include/freetype/freetype.h
index 4f2eaca..829f249 100644
--- a/include/freetype/freetype.h
+++ b/include/freetype/freetype.h
@@ -645,7 +645,7 @@ FT_BEGIN_HEADER
* FT_ENCODING_MS_SYMBOL ::
* Microsoft Symbol encoding, used to encode mathematical symbols and
* wingdings. For more information, see
- * 'https://www.microsoft.com/typography/otspec/recom.htm',
+ * 'https://www.microsoft.com/typography/otspec/recom.htm#non-standard-symbol-fonts',
* 'http://www.kostis.net/charsets/symbol.htm', and
* 'http://www.kostis.net/charsets/wingding.htm'.
*