add ngrams support

Please add a volume option to `docker run` command like `-v
/path/to/ngrams:/ngrams`.

This fixes #5.

Signed-off-by: Silvio Fricke <silvio.fricke@gmail.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/readme.md b/readme.md
index 2842c99..b276057 100644
--- a/readme.md
+++ b/readme.md
@@ -20,3 +20,13 @@ The Server is running on port 8010, this port should exposed.
     $ docker run --rm -p 8010:8010 silviof/docker-languagetool
 
 Or you run it in background via `-d`-option.
+
+
+## ngram support
+
+To support [ngrams] you need an additional volume or directory mounted to the
+`/ngrams` directory. For that add a `-v` to the `docker run`-command.
+
+    docker run ... -v /path/to/ngrams:/ngrams ...
+
+[ngrams]: http://wiki.languagetool.org/finding-errors-using-n-gram-data