user-manual: stub discussion of fsck and reflog

Have some sort of recovery/reliability section that deals with reflog
and fsck.

Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt
index 30adc72..00e445d 100644
--- a/Documentation/user-manual.txt
+++ b/Documentation/user-manual.txt
@@ -1456,6 +1456,27 @@
 to recompress the archive.  This can be very time-consuming, so
 you may prefer to run git-gc when you are not doing other work.
 
+Ensuring reliability
+--------------------
+
+Checking the repository for corruption
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+TODO:
+	git-fsck
+	"dangling objects" explanation
+		Brief explanation here,
+		include forward reference to longer explanation from
+			Linus, to be added to later chapter
+
+Recovering lost changes
+~~~~~~~~~~~~~~~~~~~~~~~
+
+TODO:
+	reflog
+	git-fsck
+	low-level examination of objects
+
 Sharing development with others
 ===============================