Update README.md

README.md

@@ -1,4 +1,41 @@
-# Jaccard Index
+# Measuring similarity of sentences
+
+The Jaccard Index itself calculates the similarity/diversity of two sample sets. 
+
+This module measure the similarity between senteces, based on the words in common (some of the stop words are excluded). 
+
+
+[<img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/eaef5aa86949f49e7dc6b9c8c3dd8b233332c9e7">](https://en.wikipedia.org/wiki/Jaccard_index)
+
+You can find more information about the algorithm on [Wikipedia](https://en.wikipedia.org/wiki/Jaccard_index)
+## Example
+
+**Input**:
+
+"This is one sentence."
+
+"This is another sentence."
+
+**Result**: 0.66%
+
+##Pre-installation 
+
+This module is build on top of the ["Natural" module](https://github.com/NaturalNode/natural) - library for natural language processing.
+
+You need to run:
+
+```
+npm install natural
+
+```
+
+**
+##Installation
+
+##Usage
+
+
+
 
 # License