Add meteor installation instructions (java)

README.md

@@ -87,6 +87,13 @@ python -m nltk.downloader stopwords
 This requires the `sentence-transformers` package. This can be installed manually
 or with the `summ-eval[supert]` extra.
 
+### Meteor
+This implementation is in java so requires the java run time environment.
+This can be installed with
+```bash
+apt-get install default-jre
+```
+
 ## Usage
 
 ### As a package