changing directory names

README.md

@@ -15,12 +15,11 @@ The repo is structured as follows:
   - /ir - implementation of inconsistent replication protocol
 
 - /store
-  - /tapir - implementation of TAPIR designed to work with IR
-  - /occstore - implementation of an OCC-based 2PC transactional
+  - /common - common data structures, backing stores and interfaces for all of stores
+  - /tapirstore - implementation of TAPIR designed to work with IR
+  - /strongstore - implementation of both an OCC-based and locking-based 2PC transactional
   storage system, designed to work with VR
-  - /lockstore - implementation of a strict two-phase locking 2PC
-  transactional storage system, designed to work with VR
-  - /qwstore - implementation of an eventually consistent storage
+  - /weakstore - implementation of an eventually consistent storage
     system, using quorum writes for replication
 
 ## Compiling & Running