Minor typographic changes and reflow

doc/Language/variables.pod6

@@ -34,12 +34,12 @@ simplify assignment by flattening by default.
 
 =begin table
 
-Sigil   Type constraint              Default type  Assignment  Examples
-=====   ===============              ============  ==========  ========
-$       Mu (no type constraint)      Any           item        Int, Str, Array, Hash
-@       Positional                   Array         list        List, Array, Range, Buf
-%       Associative                  Hash          list        Hash, Map, Pair
-&       Callable                     Callable      item        Sub, Method, Block, Routine
+Sigil   Type constraint          Default type  Assignment  Examples
+=====   ===============          ============  ==========  ========
+$       Mu (no type constraint)  Any           item        Int, Str, Array, Hash
+@       Positional               Array         list        List, Array, Range, Buf
+%       Associative              Hash          list        Hash, Map, Pair
+&       Callable                 Callable      item        Sub, Method, Block, Routine
 
 =end table
 
@@ -66,7 +66,7 @@ declaration of the variable.  Assuming we have a C<FailHash> class:
         }
     }
 
-One can then define a C<%h> variable using C<is>:
+One can then define a C<%h> variable of this type using C<is>:
 
 =for code :preamble<class FailHash {}>
 my %h is FailHash = oranges => "round", bananas => "bendy";
@@ -1016,9 +1016,10 @@ There are three special variables that are available in every block:
 X<|topic variable>
 =head3 The C<$_> variable
 
-C<$_> is the topic variable. It's the default parameter for blocks that do
-not have an explicit signature, so constructs like C<for @array { ... }> and
-C<given $var { ... }> bind to C<$_> by invoking the block.
+C<$_> is the topic variable. It's the default parameter for blocks that do not
+have an explicit signature, so constructs like C<for @array { ... }> and C<given
+$var { ... }> bind the value or values of the variable to C<$_> by invoking the
+block.
 
     for <a b c> { say $_ }  # sets $_ to 'a', 'b' and 'c' in turn
     say $_ for <a b c>;     # same, even though it's not a block
@@ -1103,7 +1104,8 @@ These can also be accessed by the shortcuts C<$0>, C<$1>, C<$2>, etc.
     say $0; # OUTPUT: «｢bbbbb｣␤»
     say $1; # OUTPUT: «｢dddddeff｣␤»
 
-To get all of the positional attributes, you can use C<$/.list> or C<@$/>. Before 6.d, you can also use the C<@()> shortcut (no spaces inside the
+To get all of the positional attributes, you can use C<$/.list> or C<@$/>.
+Before 6.d, you can also use the C<@()> shortcut (no spaces inside the
 parentheses).
 
     say @$/.join; # OUTPUT: «bbbbbdddddeff␤»
@@ -1118,7 +1120,7 @@ This I<magic> behavior of C<@()> has been deprecated as of 6.d
 C<$/> can have named attributes if the L<Regex|/language/regexes> had named
 capture-groups in it, or if the Regex called out to another Regex.
 
-    'I.... see?' ~~ / \w+ $<punctuation>=[ <-[\w\s]>+ ] \s* $<final-word> = [ \w+ . ] /;
+    'I... see?' ~~ / \w+ $<punctuation>=[ <-[\w\s]>+ ] \s* $<final-word> = [ \w+ . ] /;
     say $/<punctuation>; # OUTPUT: «｢....｣␤»
     say $/<final-word>;  # OUTPUT: «｢see?｣␤»
 
@@ -1182,7 +1184,8 @@ The following compile time variables allow for a deeper introspection:
     $?NL             What a vertical newline "\n" means: LF, CR or CRLF
     $?DISTRIBUTION   The Distribution of the current compilation unit.
 
-With particular regard to the C<$?NL>, see the  L<newline pragma|/language/pragmas>.
+With particular regard to the C<$?NL>, see the  L<newline
+pragma|/language/pragmas>.
 
 These variables are Rakudo specific, with all the corresponding caveats:
 =for table
@@ -1325,11 +1328,10 @@ This variable holds information about modules installed/loaded.
 X<|$*INIT-INSTANT>
 =head4 C<$*INIT-INSTANT>
 
-C<$*INIT-INSTANT> is an L<Instant|/type/Instant> object representing program startup time.
-In particular, this is when the core code starts up,
-so the value of C<$*INIT-INSTANT> may be a few milliseconds
-earlier than C<INIT now> or even C<BEGIN now> executed
-in your program.
+C<$*INIT-INSTANT> is an L<Instant|/type/Instant> object representing program
+startup time. In particular, this is when the core code starts up, so the value
+of C<$*INIT-INSTANT> may be a few milliseconds earlier than C<INIT now> or even
+C<BEGIN now> executed in your program.
 
 X<|$*TZ>
 =head4 C<$*TZ>