fix install section

Granitosaurus · web-flow · commit 43da01cab6e2 · 2019-02-20T02:20:45.000Z
diff --git a/README.rst b/README.rst
@@ -30,9 +30,7 @@ To install from source :
 
 ::
 
-    git clone https://github.com/gamenet/redis-memory-analyzer
-    cd redis-memory-analyzer
-    sudo python setup.py install
+    pip install git+https://github.com/gamenet/redis-memory-analyzer@v0.2.0
 
 Running
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