update snapshot to 0.8.0 (#220)

* Update README.md

* Bump version from 0.7.0-SNAPSHOT to 0.8.0-SNAPSHOT

Author: gkorland

README.md

@@ -21,7 +21,7 @@ FalkorDB Java client
     <dependency>
       <groupId>com.falkordb</groupId>
       <artifactId>jfalkordb</artifactId>
-      <version>0.6.0</version>
+      <version>0.7.0</version>
     </dependency>
   </dependencies>
 ```
@@ -44,7 +44,7 @@ and
     <dependency>
       <groupId>com.falkordb</groupId>
       <artifactId>jfalkordb</artifactId>
-      <version>0.7.0-SNAPSHOT</version>
+      <version>0.8.0-SNAPSHOT</version>
     </dependency>
   </dependencies>
 ```

pom.xml

@@ -11,7 +11,7 @@
 
 	<groupId>com.falkordb</groupId>
 	<artifactId>jfalkordb</artifactId>
-	<version>0.7.0-SNAPSHOT</version>
+	<version>0.8.0-SNAPSHOT</version>
 	<packaging>jar</packaging>
 
 	<name>JFalkorDB</name>