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-rw-r--r--derivation_to_json/README.md3
1 files changed, 3 insertions, 0 deletions
diff --git a/derivation_to_json/README.md b/derivation_to_json/README.md
index 341f866..eb2e3fe 100644
--- a/derivation_to_json/README.md
+++ b/derivation_to_json/README.md
@@ -7,3 +7,6 @@ To run:
./derivation_to_json.rb < {one of the .raw files}
(first line of stdout is json data, source and target strings follow after that)
+The first line of the input is the derivation as string, the following lines
+are the rules used in the derivation.
+