Fix Java class file name (must match class name).
@@ -51,7 +51,7 @@ for using Bazel in any language.
in other languages may have a different workspace path and directory
structure.
-4. In the directory you created, add a file called `Greetings.java` with the
+4. In the directory you created, add a file called `Greeting.java` with the
following contents:
```java
