updated README

README.md

 # DBCop
 
-### __For recent work, look at `wip` branch.__
-
 ## Usage
 
 1.  Clone it.
 ```
-    git clone -b wip git@gitlab.math.univ-paris-diderot.fr:ranadeep/dbcop.git
-```
-
-2. Fire up Galera cluster using  `docker-compose`.
-```
-cd docker
-sudo docker-compose up
+    git clone git@gitlab.math.univ-paris-diderot.fr:ranadeep/dbcop.git
 ```
 
-3.  Compile and install using `cargo` and run.
+2.  Compile and install using `cargo` and run.
     Make sure `~/.cargo/bin` is in your system path.
 ```
     cd dbcop
-    cargo install
-    dbcop
+    dbcop install --path .
+    dbcop --help
 ```
+---
+
+There are a few `docker-compose` files in `docker` directory to create docker cluster.
+
+The workflow goes like this,
+
+1. Generate a bunch of histories to execute on a database.
+2. Execute those histories on a database using provided `traits`. (see in `examples`).
+3. Verify the executed histories for `--cc`(causal consistency), `--si`(snapshot isolation), `--ser`(serialization).