"An"s vs. "A"s and misplaced hyphens.

Sentence changed because, if '===' cannot be distinguished from
'⩶', 'this' has no referent.

doc/Language/operators.pod6

@@ -1066,7 +1066,7 @@ undefined values, it returns 0:
     say $x;     # OUTPUT: «1␤»
 
 Increment on L<Str|/type/Str> will increment the number part of a string and
-assign the resulting string to the container. A C<is rw>-container is required.
+assign the resulting string to the container. An C<is rw> container is required.
 
     my $filename = "somefile-001.txt";
     say $filename++ for 1..3;
@@ -1109,7 +1109,7 @@ undefined values, it returns 0:
     say $x;     # OUTPUT: «-1␤»
 
 Decrement on L<Str|/type/Str> will decrement the number part of a string and
-assign the resulting string to the container. A C<is rw>-container is required.
+assign the resulting string to the container. An C<is rw> container is required.
 Crossing 0 is prohibited and throws C<X::AdHoc>.
 
     my $filename = "somefile-003.txt";
@@ -2358,7 +2358,7 @@ class must create an instance method C<WHICH>, that should return a
 L<ValueObjAt|/type/ValueObjAt> object that won't change for the lifetime of
 the object.
 
-Since Rakudo version 2021.07, ⩶ is an alias for this operator.
+Since Rakudo version 2021.07, the Unicode character ⩶ is an alias for this operator.
 
 =head2 infix C«=:=»