Update README.md

README.md

@@ -48,7 +48,7 @@ Example of running hastic-server on Debian / Ubuntu host:
 ```
 $ export HASTIC_API_KEY=<your_grafana_api_key>
 $ export HASTIC_PORT=<port_you_want_to_run_server_on>
-# apt-get install \
+# sudo apt-get install \
   python3 \
   python3-pip \
   gnupg \
@@ -56,10 +56,7 @@ $ export HASTIC_PORT=<port_you_want_to_run_server_on>
   make \
   g++ \
   git
-$ pip3 install pandas
-$ pip3 install seglearn
-$ pip3 install scipy
-$ pip3 install tsfresh
+$ sudo pip3 install pandas seglearn scipy tsfresh
 $ curl -sL https://deb.nodesource.com/setup_9.x | bash -
 # apt-get update && apt-get install -y nodejs
 $ git clone https://github.com/hastic/hastic-server.git