Readme update (#39)

* Update README.md

README.md

@@ -23,55 +23,55 @@ Take the following steps to install Marvin Toolbox:
 1. Libsasl2-dev, Python-pip and Graphviz installation
 ```
 Ubuntu: 
-$ sudo apt-get install libsasl2-dev python-pip graphviz -y
+sudo apt-get install libsasl2-dev python-pip graphviz -y
 
 MacOS: 
-$ sudo easy_install pip
-$ brew install openssl graphviz
+sudo easy_install pip
+brew install openssl graphviz
 ```
 2. VirtualEnvWrapper Installation
 ```
-$ sudo pip install --upgrade pip
-$ sudo pip install virtualenvwrapper
+sudo pip install --upgrade pip
+sudo pip install virtualenvwrapper
 ```
 3. Spark installation
 ```
 $ curl https://d3kbcqa49mib13.cloudfront.net/spark-2.1.1-bin-hadoop2.6.tgz -o /tmp/spark-2.1.1-bin-hadoop2.6.tgz
 
-$ sudo tar -xf /tmp/spark-2.1.1-bin-hadoop2.6.tgz -C /opt/
-$ sudo ln -s /opt/spark-2.1.1-bin-hadoop2.6 /opt/spark
+sudo tar -xf /tmp/spark-2.1.1-bin-hadoop2.6.tgz -C /opt/
+sudo ln -s /opt/spark-2.1.1-bin-hadoop2.6 /opt/spark
 
-$ echo "export SPARK_HOME=/opt/spark" >> $HOME/.bash_profile
+echo "export SPARK_HOME=/opt/spark" >> $HOME/.bash_profile
 ```
 4. Set environment variables
 ```
-$ echo "export WORKON_HOME=$HOME/.virtualenvs" >> $HOME/.bash_profile
-$ echo "export MARVIN_HOME=$HOME/marvin" >> $HOME/.bash_profile
-$ echo "export MARVIN_DATA_PATH=$HOME/marvin/data" >> $HOME/.bash_profile
-$ echo "source virtualenvwrapper.sh" >> $HOME/.bash_profile
+echo "export WORKON_HOME=$HOME/.virtualenvs" >> $HOME/.bash_profile
+echo "export MARVIN_HOME=$HOME/marvin" >> $HOME/.bash_profile
+echo "export MARVIN_DATA_PATH=$HOME/marvin/data" >> $HOME/.bash_profile
+echo "source virtualenvwrapper.sh" >> $HOME/.bash_profile
 
-$ source ~/.bash_profile
+source ~/.bash_profile
 ````
 
 5. Clone and install python-toolbox
 
 ```
-$ mkdir $MARVIN_HOME
-$ mkdir $MARVIN_DATA_PATH
-$ cd $MARVIN_HOME
+mkdir $MARVIN_HOME
+mkdir $MARVIN_DATA_PATH
+cd $MARVIN_HOME
 
-$ git clone https://github.com/marvin-ai/marvin-python-toolbox.git
-$ cd marvin-python-toolbox
+git clone https://github.com/marvin-ai/marvin-python-toolbox.git
+cd marvin-python-toolbox
 
-$ mkvirtualenv python-toolbox-env
-$ setvirtualenvproject
+mkvirtualenv python-toolbox-env
+setvirtualenvproject
 
-$ make marvin
+make marvin
 ````
 
 6. Test the installation
 ```
-$ marvin test
+marvin test
 ```
 ### Installing Marvin with Others SOs
 Take the following steps to install Marvin Toolbox using Vagrant:
@@ -82,21 +82,21 @@ Take the following steps to install Marvin Toolbox using Vagrant:
 
 2. Clone repository and start provision
 ```
-$ git clone https://github.com/marvin-ai/marvin-vagrant-dev.git
-$ cd marvin-vagrant-dev
+git clone https://github.com/marvin-ai/marvin-vagrant-dev.git
+cd marvin-vagrant-dev
 ```
 
 3. Prepare dev (engine creation) box
 ```
-$ vagrant up dev
-$ vagrant ssh dev
+vagrant up dev
+vagrant ssh dev
 ```
 Wait for provision process and follow interactive configuration script after access the dev box using vagrant ssh command.
 
 4. The marvin source projects will be on your home folder, to compile and use the marvin toolbox
 ```
-$ workon python-toolbox-env
-$ make marvin
+workon python-toolbox-env
+make marvin
 ```
 ### Creating a new engine
 1. To create a new engine
@@ -108,25 +108,25 @@ Respond the interactive prompt and wait for the engine environment preparation,
 
 2. Test the new engine
 ```
-$ workon <new_engine_name>-env
-$ marvin test
+workon <new_engine_name>-env
+marvin test
 ```
 3. For more informations
 ```
-$ marvin --help
+marvin --help
 ```
 ### Working in an existing engine
 1. Set VirtualEnv and get to engine's path
 ```
-$ workon <engine_name>-env
+workon <engine_name>-env
 ```
 2. Test your engine
 ```
-$ marvin test
+marvin test
 ```
 3. Bring up the notebook and access it from your browser
 ```
-$ marvin notebook
+marvin notebook
 ```
 ### Command line interface
 Usage: marvin [OPTIONS] COMMAND [ARGS]
@@ -163,17 +163,17 @@ Commands:
 ### Running a example engine 
 1. Clone example engine from repository
 ```
-$ git clone https://github.com/marvin-ai/engines.git
+git clone https://github.com/marvin-ai/engines.git
 ```
 2. Generate a new marvin engine environment for Iris species engine
 ```
-$ workon python-toolbox-env
-$ marvin engine-generateenv ../engines/iris-species-engine/
+workon python-toolbox-env
+marvin engine-generateenv ../engines/iris-species-engine/
 ```
 3. Run the Iris species engine
 ```
-$ workon iris-species-engine-env
-$ marvin engine-dryrun 
+workon iris-species-engine-env
+marvin engine-dryrun 
 ```
 
 > Marvin is a project started at B2W Digital offices and released open source on September 2017.