Fix reference to Everyday Git, which is an HTML document and not a man page.

Signed-off-by: Jon Jensen <jon@endpoint.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git.txt

@@ -602,7 +602,7 @@ contributors on the git-list <git@vger.kernel.org>.
 SEE ALSO
 --------
 linkgit:gittutorial[7], linkgit:gittutorial-2[7],
-linkgit:everyday[7], linkgit:gitcvs-migration[7],
+link:everyday.html[Everyday Git], linkgit:gitcvs-migration[7],
 linkgit:gitglossary[7], linkgit:gitcore-tutorial[7],
 linkgit:gitcli[7], link:user-manual.html[The Git User's Manual]