Merge pull request #80 from phyloref/clarify-readme

@Shalsh23 kindly walked through the instructions in the README and made some suggestions for clarifying some of the steps. Thanks so much, Shalki!

README.md

@@ -19,6 +19,8 @@ can be used to resolve [phyloreferences](http://phyloref.org):
     - You can also use the `/version` endpoint to test whether the software is
       working. It will report on the version of JPhyloRef, OWLAPI and reasoner
       being used.
+    - Note that no content is served at `/`; you will need to use `/version` to
+      test that the server is running.
 - `java -jar jphyloref.jar test input.owl`: Test all the phyloreferences in
   `input.owl` by comparing their resolution with the expected resolution recorded
   in the file.
@@ -31,6 +33,8 @@ Development of JPhyloRef takes place in [our GitHub repository]. This includes [
 
 # Build and execution instructions
 
+Once you have downloaded the source code to your computer, you can compile and test the code by running `mvn test`.
+
 JPhyloRef can be built from source by running `mvn package` from the root directory of this repository. This will create a JAR file in the `target/` directory, which can be executed by running,
 for example: