fixup: renamed "backups" to "recovery files"

* Other editors call "backup files" previous copies of saved files.
  This role would be served by savepoint files in SciTECO.
* Likewise filename~ would point to such a backup file.
  It therefore makes sense that savepoint files also end in tildes (.teco-n-filename~).
* Security copies of modified buffers would be called "auto-saves" (Emacs) or
  "swap files" (Vim).
  Both of these terms is IMHO misleading, so SciTECO now uses the
  term "recovery file".
* "Recovery files" are now named #filename# just like in Emacs.

1 files changed, 3 insertions, 1 deletions

diff --git a/README b/README
index 4f3b7b5..d110285 100644
--- a/README
+++ b/README
@@ -73,7 +73,9 @@ Features
   This makes it even harder to destroy work by accident than in most other
   editors.
   Rubbed out commands can be re-inserted (redo).
-* Timing-based backup mechanism
+* Timing-based recovery mechanism:
+  Modified buffers are regularily dumped into **#**_files_**#** to protect against
+  crashes and unexpected restarts etc.
 * Munging: Macros may be munged, that is executed in batch mode. In other words, SciTECO
   can be used for scripting.
   By default, a profile is munged.