doc: A few minor copy edits.

- (glossary) the quotes around the Wikipedia URL prevented its
  linkification in frontends that support it; remove them

- (manual) newer version (SHA-1) == following, older == preceding, not
  the other way around

- trivial typo and wording fixes

Signed-off-by: Štěpán Němec <stepnem@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-merge.txt

@@ -181,7 +181,7 @@ final result verbatim.  When both sides made changes to the same area,
 however, git cannot randomly pick one side over the other, and asks you to
 resolve it by leaving what both sides did to that area.
 
-By default, git uses the same style as that is used by "merge" program
+By default, git uses the same style as the one used by the "merge" program
 from the RCS suite to present such a conflicted hunk, like this:
 
 ------------

Documentation/git-rebase.txt

@@ -273,7 +273,7 @@ which makes little sense.
 	Pass the <strategy-option> through to the merge strategy.
 	This implies `--merge` and, if no strategy has been
 	specified, `-s recursive`.  Note the reversal of 'ours' and
-	'theirs' as noted in above for the `-m` option.
+	'theirs' as noted above for the `-m` option.
 
 -q::
 --quiet::

Documentation/glossary-content.txt

@@ -117,7 +117,7 @@ to point at the new commit.
 
 [[def_ent]]ent::
 	Favorite synonym to "<<def_tree-ish,tree-ish>>" by some total geeks. See
-	`http://en.wikipedia.org/wiki/Ent_(Middle-earth)` for an in-depth
+	http://en.wikipedia.org/wiki/Ent_(Middle-earth) for an in-depth
 	explanation. Avoid this term, not to confuse people.
 
 [[def_evil_merge]]evil merge::

Documentation/rev-list-options.txt

@@ -760,7 +760,7 @@ options may be given. See linkgit:git-diff-files[1] for more options.
 
 --cc::
 
-	This flag implies the '-c' options and further compresses the
+	This flag implies the '-c' option and further compresses the
 	patch output by omitting uninteresting hunks whose contents in
 	the parents have only two variants and the merge result picks
 	one of them without modification.

Documentation/user-manual.txt

@@ -2870,7 +2870,7 @@ $ git fetch example
 You can also add a "+" to force the update each time:
 
 -------------------------------------------------
-$ git config remote.example.fetch +master:ref/remotes/example/master
+$ git config remote.example.fetch +master:refs/remotes/example/master
 -------------------------------------------------
 
 Don't do this unless you're sure you won't mind "git fetch" possibly
@@ -2966,7 +2966,7 @@ As you can see, a commit is defined by:
 
 - a tree: The SHA-1 name of a tree object (as defined below), representing
   the contents of a directory at a certain point in time.
-- parent(s): The SHA-1 name of some number of commits which represent the
+- parent(s): The SHA-1 name(s) of some number of commits which represent the
   immediately previous step(s) in the history of the project.  The
   example above has one parent; merge commits may have more than
   one.  A commit with no parents is called a "root" commit, and
@@ -3363,8 +3363,8 @@ Date:
 :100644 100644 oldsha... 4b9458b... M somedirectory/myfile
 ------------------------------------------------
 
-This tells you that the immediately preceding version of the file was
-"newsha", and that the immediately following version was "oldsha".
+This tells you that the immediately following version of the file was
+"newsha", and that the immediately preceding version was "oldsha".
 You also know the commit messages that went with the change from oldsha
 to 4b9458b and with the change from 4b9458b to newsha.
 
@@ -4035,8 +4035,8 @@ $ git ls-files --unmerged
 Each line of the `git ls-files --unmerged` output begins with
 the blob mode bits, blob SHA-1, 'stage number', and the
 filename.  The 'stage number' is git's way to say which tree it
-came from: stage 1 corresponds to `$orig` tree, stage 2 `HEAD`
-tree, and stage3 `$target` tree.
+came from: stage 1 corresponds to the `$orig` tree, stage 2 to
+the `HEAD` tree, and stage 3 to the `$target` tree.
 
 Earlier we said that trivial merges are done inside
 `git read-tree -m`.  For example, if the file did not change