attribute documentation: keep EXAMPLE at end

The document gives overall definition of states in DESCRIPTION, describes
various aspects of git operations that can be influenced in EFFECTS, and
finally gives examples in the EXAMPLE section.  Archive creation however
was somehow documented after the EXAMPLE section, not insode EFFECTS.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/gitattributes.txt

@@ -450,6 +450,23 @@ String::
 	variable.
 
 
+Creating an archive
+~~~~~~~~~~~~~~~~~~~
+
+`export-subst`
+^^^^^^^^^^^^^^
+
+If the attribute `export-subst` is set for a file then git will expand
+several placeholders when adding this file to an archive.  The
+expansion depends on the availability of a commit ID, i.e. if
+linkgit:git-archive[1] has been given a tree instead of a commit or a
+tag then no replacement will be done.  The placeholders are the same
+as those for the option `--pretty=format:` of linkgit:git-log[1],
+except that they need to be wrapped like this: `$Format:PLACEHOLDERS$`
+in the file.  E.g. the string `$Format:%H$` will be replaced by the
+commit hash.
+
+
 EXAMPLE
 -------
 
@@ -499,22 +516,6 @@ frotz	unspecified
 ----------------------------------------------------------------
 
 
-Creating an archive
-~~~~~~~~~~~~~~~~~~~
-
-`export-subst`
-^^^^^^^^^^^^^^
-
-If the attribute `export-subst` is set for a file then git will expand
-several placeholders when adding this file to an archive.  The
-expansion depends on the availability of a commit ID, i.e. if
-linkgit:git-archive[1] has been given a tree instead of a commit or a
-tag then no replacement will be done.  The placeholders are the same
-as those for the option `--pretty=format:` of linkgit:git-log[1],
-except that they need to be wrapped like this: `$Format:PLACEHOLDERS$`
-in the file.  E.g. the string `$Format:%H$` will be replaced by the
-commit hash.
-
 
 GIT
 ---