Update README.md

Author: Nativeatom

Embedding/README.md

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 * [Distributional and Word Embedding Models](https://github.com/Lambda-3/Indra/wiki/Distributional-and-Word-Embedding-Models)
 
 ### Word2Vec
-* Overview by Xin Rong *[word2vec Parameter Learning Explained](https://arxiv.org/pdf/1411.2738.pdf)* [[Video] (https://www.youtube.com/watch?v=D-ekE-Wlcds)]
+* Overview by Xin Rong *[word2vec Parameter Learning Explained](https://arxiv.org/pdf/1411.2738.pdf)* [[Video] (https://www.youtube.com/watch?v=D-ekE-Wlcds)]*
 * Explanation of Negative Sampling *[word2vec Explained:  Deriving Mikolov et al.’s Negative-Sampling Word-Embedding Method](https://arxiv.org/pdf/1402.3722.pdf)*
 * Connection of Negative Sampling and Mutual Information *[Neural Word Embedding as Implicit Matrix Factorization](https://pdfs.semanticscholar.org/e0d7/69c5698275c2f745c1aac2aebc323f51aa24.pdf?_ga=2.100986117.540785117.1516862569-662515382.1516862569)* 14'