snapshot url added.

README.md

@@ -17,6 +17,15 @@ Gradle users should add the library using the following dependency:
         compile 'de.inetsoftware:jlessc:+'
     }
 
+If you want test a snapshot version with the latest bug fixes then add the snapshot repository:
+
+    repositories {
+        maven {
+            url "https://oss.sonatype.org/content/repositories/snapshots/"
+        }
+        jcenter() // or any other repository that you use
+    }
+
 Maven users should add the library using the following dependency:
 
     <dependency>
@@ -35,6 +44,8 @@ Checkout the sources or download the binary and add it to your Java project. The
     // Compile Less data to CSS output
     String css = Less.compile( null, "@bgcol: red; #row { background-color: @bgcol; }", true );
 
+API details can you find in the source of the [Less](https://github.com/i-net-software/jlessc/blob/master/src/com/inet/lib/less/Less.java) class. 
+
 Benchmark
 ----
 JLessC runs a benchmark test on the travis build system using different less compilers. We always use the latest version of every compiler. We measure the compile time of the bootstrap sample in our test suite. The table shows [a result for Java SE 8](https://travis-ci.org/i-net-software/jlessc/jobs/57452290). Of course the values can change over the time.