[func.bind.is{bind,place}] Don't being sentences with code.

Author: tkoeppe

source/utilities.tex

@@ -14040,8 +14040,8 @@
 \end{codeblock}
 
 \pnum
-\tcode{is_bind_expression} can be used to detect function objects
-generated by \tcode{bind}. \tcode{bind}
+The class template \tcode{is_bind_expression} can be used to detect function objects
+generated by \tcode{bind}. The function template \tcode{bind}
 uses \tcode{is_bind_expression} to detect subexpressions.
 
 \pnum
@@ -14064,8 +14064,8 @@
 \end{codeblock}
 
 \pnum
-\tcode{is_placeholder} can be used to detect the standard placeholders
-\tcode{_1}, \tcode{_2}, and so on. \tcode{bind} uses
+The class template \tcode{is_placeholder} can be used to detect the standard placeholders
+\tcode{_1}, \tcode{_2}, and so on. The function template \tcode{bind} uses
 \tcode{is_placeholder} to detect placeholders.
 
 \pnum