Update README.md

Author: adriaanm

README.md

@@ -1,7 +1,7 @@
 This is the repository for the [Scala Programming Language](http://www.scala-lang.org).
 
   - [Report an issue](https://issues.scala-lang.org);
-  - [Read adbout the development of the compiler and the standard library](http://docs.scala-lang.org/scala/);
+  - [Read about the development of the compiler and the standard library](http://docs.scala-lang.org/scala/);
   - [Check our Jenkins status](https://scala-webapps.epfl.ch/jenkins/);
   - [Download the latest nightly](https://scala-webapps.epfl.ch/jenkins/job/scala-nightly-main-master/ws/dists/latest/*zip*/latest.zip);
   - ... and contribute right here! Please, first read our [policy](http://docs.scala-lang.org/scala/pull-request-policy.html),