Fixes non-breaking space and some minor changes refs #1081

Author: JJ

doc/Language/5to6-nutshell.pod6

@@ -420,12 +420,15 @@ adverbs.
 
 In Perl 5, references to anonymous arrays and hashes and subs are returned
 during their creation. References to existing named variables and subs were
-generated with the C<\> operator. the "referencing/dereferencing" metaphor does not map cleanly to the actual Perl 6 container system, so we will have to focus on the intent of the reference operators instead of the actual syntax.
+generated with the C<\> operator. the "referencing/dereferencing"
+metaphor does not map cleanly to the actual Perl 6 container system,
+so we will have to focus on the intent of the reference operators
+instead of the actual syntax. 
 
 =for code :lang<perl5>
 my $aref =     \@aaa  ; # Perl 5
 
-This might be used for passing a reference to a routine, for instance. But in Perl 6, the default behavior is a pass by reference.
+This might be used for passing a reference to a routine, for instance. But in Perl 6, the default behavior is a pass by reference.
 
 =begin code
 my @a = 4,8,15;
@@ -448,9 +451,13 @@ the dot operator C<.> is always used for object methods, but the rest does not r
     say $hashref->{'fire bad'};
     say $subref->($foo, $bar);
 
-In recent versions of Perl 5 (5.20 and later), a new feature allows the use of the arrow
+In relatively recent versions of Perl 5 (5.20 and later), a new feature allows the use of the arrow
 operator for dereferencing:  see
-L<Postfix Dereferencing|http://search.cpan.org/~shay/perl-5.20.1/pod/perl5200delta.pod#Experimental_Postfix_Dereferencing>. This can be used to create an array from a scalar. This operation is usually called I<decont>, as in decontainerization, and in Perl 6 methods such as C<.list> and C<.hash> are used:
+L<Postfix
+Dereferencing|http://search.cpan.org/~shay/perl-5.20.1/pod/perl5200delta.pod#Experimental_Postfix_Dereferencing>. This
+can be used to create an array from a scalar. This operation is
+usually called I<decont>, as in decontainerization, and in Perl 6
+methods such as C<.list> and C<.hash> are used: 
 
 =for code :lang<perl5>
 # Perl 5.20
@@ -461,7 +468,7 @@ L<Postfix Dereferencing|http://search.cpan.org/~shay/perl-5.20.1/pod/perl5200del
 
 =for code :preamble<no strict;>
 # Perl 6
-    my @a = $contains-an-array.list;         # or @($arrayref)
+    my @a = $contains-an-array.list;        # or @($arrayref)
     my %h = $contains-a-hash.hash;          # or %($hashref)
 
 The "Zen" slice does the same thing: