Update README.md

Author: AlisterTA

README.md

@@ -1,6 +1,6 @@
 # Persian-text-to-speech
 
-** A convolutional sequence to sequence model for Persian text to speech based on [Tachibana et al](https://arxiv.org/abs/1710.08969) with a few modifications: **
+**A convolutional sequence to sequence model for Persian text to speech based on [Tachibana et al](https://arxiv.org/abs/1710.08969) with a few modifications:**
 
 1)	The article didn’t mention position embedding, but in order to give the model a sense of position awareness I added it (I turned out to be useful in the original [convolutional seq2seq paper](https://arxiv.org/abs/1705.03122)