Add ChathurangiJayawardana to Contributors list

N/Nature.json

@@ -0,0 +1,7 @@
+{
+    "word": "Nature",
+    "definitions": [
+        "The phenomena of the physical world collectively, including plants, animals, the landscape, and other features and products of the earth, as opposed to humans or human creations. "
+    ],
+    "parts-of-speech": "Noun"
+}