Update the bolt-db limitations.

Signed-off-by: ishan16696 <ishan.tyagi@sap.com>

Author: ishan16696

README.md

@@ -896,6 +896,8 @@ Here are a few things to note when evaluating and using Bolt:
   call `c.Next()` after removing a key, it may skip one key/value pair.
   Refer to https://github.com/etcd-io/bbolt/pull/611 for more detailed info.
 
+* Bolt db can be corrupted during the initialization phase due to abrupt power failure.
+
   For more information on page allocation, [see this comment][page-allocation].
 
 [page-allocation]: https://github.com/boltdb/bolt/issues/308#issuecomment-74811638