update md

index.md

@@ -1,10 +1,18 @@
 ## Mapper Interactive Documentation
 
-The Mapper algorithm is a method for topological data analysis first proposed by Gurjeet Singh, Facundo Mémoli and Gunnar Carlsson in 2007 [^1]. Mapper Interactive is a web-based visualization tool for high-dimensional data analysis build upon the Mapper algorithm. It is an open source software and is released under the MIT License.
+Mapper Interactive is a web-based framework for interactive analysis and visualization of high-dimensional point cloud data built upon the Mapper algorithm. It is an open source software released under the MIT License.
 
+The Mapper algorithm is a tool from topological data analysis first introduced by Gurjeet Singh, Facundo Mémoli and Gunnar Carlsson in 2007 (http://dx.doi.org/10.2312/SPBG/SPBG07/091-100).
 
 Please find the source code on [GitHub](https://github.com/MapperInteractive/MapperInteractive).
 
+### Cite
+
+Mapper Interactive: A Toolbox for the Visual Exploration of High-Dimensional Data.
+Youjia Zhou, Yaodong Zhao, Lin Yan, Nathaniel Saul, Bei Wang.
+2020.
+
+
 ### Installation
 ```shell
 git clone [email protected]:MapperInteractive/MapperInteractive.git
@@ -29,4 +37,4 @@ pip install flask
 To perform linear regression, please also make sure you have [statsmodels](https://www.statsmodels.org/stable/index.html) installed.
 ```bash
 pip install statsmodels
-```
+```