[meta.reflection.access.context] Fix typos

Author: tkoeppe

source/meta.tex

@@ -5007,7 +5007,7 @@
 
 \pnum
 The \tcode{access_context} class is a non-aggregate type
-that represents a namespacee, class, or function
+that represents a namespace, class, or function
 from which queries pertaining to access rules may be performed,
 as well as the designating class\iref{class.access.base}, if any.
 
@@ -5036,7 +5036,7 @@
 \tcode{access_context} is a structural type.
 Two values \tcode{ac1} and \tcode{ac2} of type \tcode{access_context}
 are template-argument-equivalent\iref{temp.type}
-if \tcode{a1.scope()} and \tcode{a2.scope()}
+if \tcode{ac1.scope()} and \tcode{ac2.scope()}
 are template-argument-equivalent
 and \tcode{ac1.desig\-nating_class()} and \tcode{ac2.desig\-nating_class()}
 are template-argument-equivalent.