Some rewriting, reformatting and reflow

doc/Type/IO/Handle.pod6

@@ -641,6 +641,9 @@ Defined as:
 Writes C<$buf> to the filehandle. This method can be called even when the
 handle is not L<in binary mode|/type/IO::Handle#method_encoding>.
 
+X<|SeekFromBeginning>
+X<|SeekFromCurrent>
+X<|SeekFromEnd>
 =head2 method seek
 
 Defined as:
@@ -652,18 +655,12 @@ or write operations will begin) to the byte position specified by
 C<$offset> relative to the location specified by C<$whence> which may be
 one of:
 
-=item SeekFromBeginning
+=item C<SeekFromBeginning>: The beginning of the file.
 
-The beginning of the file.
+=item C<SeekFromCurrent>: The current position in the file.
 
-=item SeekFromCurrent
-
-The current position in the file.
-
-=item SeekFromEnd
-
-The end of the file.  Please note that you need to specify a negative
-offset if you want to position before the end of the file.
+=item C<SeekFromEnd>: The end of the file.  Please note that you need to specify
+a negative offset if you want to position before the end of the file.
 
 =head2 method tell
 
@@ -684,27 +681,26 @@ B<DEPRECATION NOTICE:> this method will be deprecated in C<6.d> language. Do
 not use it for new code. Use L«C<.slurp> method|/routine/slurp» method
 instead.
 
-Return the remaining content of the file from the current file position
-(which may have been set by previous reads or by C<seek>.)  If the
-adverb C<:bin> is provided a L<Buf> will be returned,
-otherwise the return will be a C<Str> with the optional encoding C<:enc>.
+Return the remaining content of the file from the current file position (which
+may have been set by previous reads or by C<seek>.)  If the adverb C<:bin> is
+provided a L<Buf> will be returned; otherwise the return will be a C<Str> with
+the optional encoding C<:enc>.
 
 =head2 method slurp
 
 Defined as:
 
     method slurp(IO::Handle:D: :$close, :$bin)
 
-Returns all the content from the current file position to the end.
-If the invocant is in binary mode or if C<$bin> is set to C<True>,
-will return a L<Buf>, otherwise will decode
-the content using invocant's current L«C<.encoding>|/routine/encoding» and
-return a L<Str>.
+Returns all the content from the current file pointer to the end. If the
+invocant is in binary mode or if C<$bin> is set to C<True>, will return a
+L<Buf>, otherwise will decode the content using invocant's current
+L«C<.encoding>|/routine/encoding» and return a L<Str>.
 
 If C<:$close> is set to C<True>, will close the handle when finished reading.
 
 B<Note:> On L<Rakudo|/language/glossary#Rakudo> this method was introduced
-with release 2017.04 and C<$bin> arg was added in 2017.10.
+with release 2017.04; C<$bin> arg was added in 2017.10.
 
 =head2 method Supply
 
@@ -714,7 +710,8 @@ Defined as:
 
 Returns a C<Supply> that will emit the contents of the handle in chunks.
 The chunks will be L«C<Buf>|/type/Buf» if the handle is in binary mode
-or, if it isn't, L«C<Str>|/type/Str» decoded using same encoding as L«C<IO::Handle.encoding>|/routine/encoding».
+or, if it isn't, L«C<Str>|/type/Str» decoded using same encoding as
+L«C<IO::Handle.encoding>|/routine/encoding».
 
 The size of the chunks is determined by the optional C<:size> named
 parameter and C<65536> bytes in binary mode or C<65536> characters in non-binary