LVM: Fix broken link to COW.

The link broke when the section on the virtual address space was made
a subsection. Just link to the containing section on processes instead.

Use the opportunity to reformat the whole paragraph and add the
missing at the end of the paragraph </p>.

diff --git a/LVM.m4 b/LVM.m4
index b02556a9193c88f3afe72cf2853500778cf25817..bf130769e1ccf4e73513c292de25f47bcc59ab32 100644 (file)
--- a/LVM.m4
+++ b/LVM.m4
@@ -410,14 +410,13 @@ one PV to different PVs in the same VG.
 
 SECTION(«LVM Snapshots»)
 
-<p> LVM snapshots are based on the CoW optimization
-strategy described earlier in the chapter on <a
-href="./Unix_Concepts.html#the_virtual_address_space_of_a_unix_process">Unix
-Concepts</a>. Creating a snapshot means to create a CoW table of
-the given size. Just before a LE of a snapshotted LV is about to be
-written to, its contents are copied to a free slot in the CoW
-table. This preserves an old version of the LV, the snapshot, which
-can later be reconstructed by overlaying the CoW table atop the LV.
+<p> LVM snapshots are based on the CoW optimization strategy described
+earlier in the chapter on <a href="./Unix_Concepts.html#processes">Unix
+Concepts</a>. Creating a snapshot means to create a CoW table of the
+given size. Just before a LE of a snapshotted LV is about to be written
+to, its contents are copied to a free slot in the CoW table. This
+preserves an old version of the LV, the snapshot, which can later be
+reconstructed by overlaying the CoW table atop the LV. </p>
 
 <p> Snapshots can be taken from a LV which contains a mounted file system,
 while applications are actively modifying files. Without coordination