Update README.md

Reduced installation steps. Using PyPi installation for adapter now

README.md

@@ -164,20 +164,12 @@ $ git clone https://github.com/raghavSharmaSigmoid/superset.git
 $ cd superset
 $ git checkout firebolt-integration
 
-# 2. Run below commands to clone firebolt adapter into superset folder
-$ cd superset
-$ git clone https://github.com/raghavSharmaSigmoid/firebolt-sqlalchemy.git
-
-# 3. Run below commands to build the firebolt adapter
-$ cd firebolt-sqlalchemy
-$ python3 -m build
-
-# 4. Run below commands to create local requirements text file which has firebolt adapter path
-$ cd $HOME/superset
+# 2. Run below commands to create local requirements text file which has firebolt adapter path
 $ touch ./docker/requirements-local.txt
-$ echo "firebolt-sqlalchemy@file://localhost/app/superset/firebolt-sqlalchemy/dist/firebolt-sqlalchemy-0.0.1.tar.gz#egg=firebolt-sqlalchemy" >> ./docker/requirements-local.txt
+$ echo "firebolt-sqlalchemy" >> ./docker/requirements-local.txt
 
-# 5. Run below command to start docker
+# 3. Run below command to build and start docker
+$ docker-compose build --force-rm
 $ docker-compose up
 ````