Update README.md

Author: dmfolgado

README.md

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 Time Alignment Measurement (TAM) is a novel time series distance able to deliver information in the temporal domain, by measuring the ammount of temporal distortion between time series.
 
-#### Citing
+## Citing
 In order to use our proposed measurement please cite the following: Folgado, Duarte, et al. "Time Alignment Measurement for Time Series." Pattern Recognition 81 (2018): 268-279. (https://www.sciencedirect.com/science/article/pii/S0031320318301286)
 
 #### This repository provides two main contribuctions: