Syntax correction in README + update davis version

README.md

@@ -4,7 +4,7 @@
 
 ```
 ./gradlew downloadAndUnzipFile
-./gradlew getJBotsim`
+./gradlew getJBotsim
 ```
 
 ## Getting started without IDE

build.gradle

@@ -43,7 +43,7 @@ repositories {
  * contents to the build directory
  */
 task downloadZipFile(type: Download) {
-    src 'http://pageperso.lif.univ-mrs.fr/~emmanuel.godard/udavis-0.7rc1.zip'
+    src 'http://pageperso.lif.univ-mrs.fr/~emmanuel.godard/udavis-0.7rc2.zip'
     dest new File('davis', 'udavis-0.7rc2.zip')
     overwrite false // to download only once
 }