Fixes identifiers, closes #2568

doc/Language/syntax.pod6

@@ -221,19 +221,19 @@ of comment
 say 'code again';
 =end code
 
-=head2 X<Identifiers|identifier, identifiers>
+=head2 X<Identifiers|identifier,identifiers>
 
 Identifiers are grammatical building blocks that may be used to give a name
-to entities/objects such as constants, variables (e.g. Scalars) and routines
-(e.g. Subs and Methods). In a L<variable name|/language/variables>, any sigil
+to entities/objects such as constants, variables (e.g. C<Scalar>s) and routines
+(e.g. C<Sub>s and Methods). In a L<variable name|/language/variables>, any sigil
 (and twigil) precedes the identifier and does not form a part thereof.
 
     constant c = 299792458;     # identifier "c" names an Int
     my $a = 123;                # identifier "a" in the name "$a" of a Scalar
     sub hello { say "Hello!" }; # identifier "hello" names a Sub
 
-Identifiers come in different forms: ordinary identifiers, extended
-identifiers, and compound identifiers.
+Identifiers come in different forms: ordinary, extended, and compound
+identifiers.
 
 =head3 Ordinary identifiers
 
@@ -299,7 +299,7 @@ infix:<*>                 # the official name of the operator in $a * $b
 infix:«<=»                # the official name of the operator in $a <= $b
 =end code
 
-For all such uses, you can append one or more colon-separated string to an
+For all such uses, you can append one or more colon-separated strings to an
 ordinary identifier to create a so-called I<extended identifier>. When appended
 to an identifier (that is, in postfix position), this colon-separated string
 generates unique variants of that identifier.