cleaned README.md

Author: imghasemi

README.md

@@ -10,49 +10,3 @@ Contains the SANSA Examples for [Apache Spark](http://spark.apache.org/).
 
 ### [sansa-examples-flink](https://github.com/SANSA-Stack/SANSA-Examples/tree/master/sansa-examples-flink)
 Contains the SANSA Examples for [Apache Flink](http://flink.apache.org/).
-
-## Not able to build the project with maven then read this section:
-*Step 1:* just make sure you are using the updated Maven Package Manager. Just run the `mvn --version` to be sure that your mvn is the latest. If it is not then run following commands in your prefered termianl:
-As the project is under development might have some problems and end up with errors during the `mvn clean install -U` building process. Therefore, hopefully there is a solution to solve this issue:
-
-```
-sudo apt-get --only-upgrade install maven
-mvn --versoin
-```
-if it does not update your current maven (last version is 3.6.0) then follow these commands:
-
-``` 
-cd ~/Downloads
-wget http://apache.mirror.digionline.de/maven/maven-3/3.6.0/binaries/apache-maven-3.6.0-bin.tar.gz
-sudo mkdir -p /usr/local/apache-maven
-sudo mv apache-maven-3.6.0-bin.tar.gz /usr/local/apache-maven
-cd /usr/local/apache-maven
-sudo tar -xzvf apache-maven-3.6.0-bin.tar.gz
-```
-*Step 2:* then based on your default `$SHELL` add following env variables:
-
-``` 
-#MAVEN env variables
-export M2_HOME=/usr/local/apache-maven/apache-maven-3.6.0
-export M2=$M2_HOME/bin
-export MAVEN_OPTS="-Xms256m -Xmx512m"
-export PATH=$M2:$PATH
-``` 
-Do not remember to source new environmental variables:
-``` 
-source ~/.bashrc
-```
-
-Now just check if the installation process is done correctly run this command:
-
-``` 
-mvn --version
-```
-
-Results: 
-
-![alt text](https://i.imgur.com/gRK41hK.png)
-
-![alt text](https://i.imgur.com/3BwAp7f.png)
-
-