Fix space in references

README.md

@@ -10,6 +10,7 @@ The ID2T application was first proposed in [[1]](#references) and [[2]](#referen
 
 ### References
 [1] [Garcia Cordero et al. (2015) ID2T: a DIY Dataset Creation Toolkit for Intrusion Detection System](https://www.tk.informatik.tu-darmstadt.de/fileadmin/user_upload/Group_TK/filesDownload/Published_Papers/id2t.pdf)
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 [2] [Vasilomanolakis et al. (2016) Towards the creation of synthetic, yet realistic, intrusion detection datasets](https://www.tk.informatik.tu-darmstadt.de/fileadmin/user_upload/Group_TK/filesDownload/Published_Papers/id2t-f.pdf)
 
 ## Getting Started