[MINOR UPDATE]: HDF5 README lists 4 conf. vars. while it says 3. (#2672)
diff --git a/contrib/format-hdf5/README.md b/contrib/format-hdf5/README.md
index 58d97f4..9964ecd 100644
--- a/contrib/format-hdf5/README.md
+++ b/contrib/format-hdf5/README.md
@@ -6,7 +6,7 @@
This plugin enables Apache Drill to query HDF5 files.
## Configuration
-There are three configuration variables in this plugin:
+There are four configuration variables in this plugin:
* `type`: This should be set to `hdf5`.
* `extensions`: This is a list of the file extensions used to identify HDF5 files. Typically HDF5 uses `.h5` or `.hdf5` as file extensions. This defaults to `.h5`.
* `defaultPath`: The default path defines which path Drill will query for data. Typically this should be left as `null` in the configuration file. Its usage is explained below.
