added readme

README.MD

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+# generatingXSD
+The utility generates an xsd schema based on xml file.
+## Supported features
+- Scheme specification (Russian doll, Salami slice, Venetian blind)  
+- Target namespace specification
+
+## Download and compile 
+* Download and install Java 8.
+* Download and install [Apache Maven](http://maven.apache.org/)
+
+* Clone this repository (or download directly from github)
+```
+git clone https://github.com/fr13Dev/generatingXSD.git
+```
+* Compile and run
+```
+cd metadataSorting
+mvn package
+java -jar xml2xsd.jar
+```
+## Usage
+Open command line and type
+```
+java -jar xml2xsd.jar
+```