change approach name in README.md

README.md

@@ -12,7 +12,7 @@
 
 The relational RAG solutions use Gradle as build tool. Thus there are no extra prerequisites.
 
-However, in order to run the rSync solutions, the following tools are necessary:
+However, in order to run the RSYNC solutions, the following tools are necessary:
 
 * Scala (optional, will be downloaded automatically via SBT if not present)
 * [SBT](https://www.scala-sbt.org/) 1.x