Update README.md

Author: evagian

Diff for: README.md

@@ -48,30 +48,39 @@ https://archive.ics.uci.edu/ml/datasets/reuters-21578+text+categorization+collec
 and should be extracted in the /data directory
 
 K shingles input
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 ![alt text](https://github.com/evagian/Document-similarity-K-shingles-minhashing-LSH-python/blob/master/data/doc/kshingles.jpg)
 
 3 shingles output
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 ![alt text](https://github.com/evagian/Document-similarity-K-shingles-minhashing-LSH-python/blob/master/data/doc/shingles.PNG)
 
 Minhashing input
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 ![alt text](https://github.com/evagian/Document-similarity-K-shingles-minhashing-LSH-python/blob/master/data/doc/hashfunctions.jpg)
 
 Minhashing output
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 ![alt text](https://github.com/evagian/Document-similarity-K-shingles-minhashing-LSH-python/blob/master/data/doc/minhashing.jpg)
 
 LSH input
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 ![alt text](https://github.com/evagian/Document-similarity-K-shingles-minhashing-LSH-python/blob/master/data/doc/lsh.jpg)
 
 Shingle similarity 
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 ![alt text](https://github.com/evagian/Document-similarity-K-shingles-minhashing-LSH-python/blob/master/data/doc/jaccard%20sim.jpg)
 
 Signature similarity 
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 ![alt text](https://github.com/evagian/Document-similarity-K-shingles-minhashing-LSH-python/blob/master/data/doc/shingle%20sim.jpg)
 
 LSH similarity
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 ![alt text](https://github.com/evagian/Document-similarity-K-shingles-minhashing-LSH-python/blob/master/data/doc/lsh%20sim.jpg)
 
 Time consumption
-![alt text](https://github.com/evagian/Document-similarity-K-shingles-minhashing-LSH-python/blob/master/data/doc/time.png)
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+![alt text](https://github.com/evagian/Document-similarity-K-shingles-minhashing-LSH-python/blob/master/data/doc/time.jpg)