Add motication to readme

README.md

@@ -1,4 +1,36 @@
-Goals:
+Motivation:
+All the backup systems are either slow or crashing or both on my backup.
+
+Tried duply:
+* works but very slow:
+```
+--------------[ Backup Statistics ]--------------
+StartTime 1547198362.85 (Fri Jan 11 09:19:22 2019)
+EndTime 1547209509.04 (Fri Jan 11 12:25:09 2019)
+ElapsedTime 11146.19 (3 hours 5 minutes 46.19 seconds)
+SourceFiles 3065438
+SourceFileSize 585041709586 (545 GB)
+NewFiles 0
+NewFileSize 0 (0 bytes)
+DeletedFiles 0
+ChangedFiles 0
+ChangedFileSize 0 (0 bytes)
+ChangedDeltaSize 0 (0 bytes)
+DeltaEntries 0
+RawDeltaSize 0 (0 bytes)
+TotalDestinationSizeChange 111 (111 bytes)
+Errors 0
+-------------------------------------------------
+
+--- Finished state OK at 12:25:15.000 - Runtime 03:06:43.000 ---
+```
+
+Tried restic:
+* crashes with OOM
+
+
+
+Goals for bakare:
 * fast
 * using max bandwidth
 * memory usage limit