[coroutine.traits.primary] Separate parameters by spaces

Author: JohelEGP

source/support.tex

@@ -5097,14 +5097,14 @@
 if \tcode{ArgTypes} is a parameter pack of types and
 if the \grammarterm{qualified-id} \tcode{R::promise_type} is valid and
 denotes a type\iref{temp.deduct},
-then \tcode{coroutine_traits<R,ArgTypes...>} has the following publicly
+then \tcode{coroutine_traits<R, ArgTypes...>} has the following publicly
 accessible member:
 
 \begin{codeblock}
 using promise_type = typename R::promise_type;
 \end{codeblock}
 
-Otherwise, \tcode{coroutine_traits<R,ArgTypes...>} has no members.
+Otherwise, \tcode{coroutine_traits<R, ArgTypes...>} has no members.
 
 \pnum
 Program-defined specializations of this template shall define a publicly