Update README.md

Author: qizhijie

README.md

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 # PROPERseqTools
-##PROPER V.1.0
+## PROPER V.1.0
 Available at https://sysbiocomp.ucsd.edu/proper/
 ## Overview
 Protein-protein Interaction Sequencing (PROPER-seq) is a high-throughput sequencing technology that efficiently maps cell wide protein-protein interactions in vitro. Here, we distribute PROPERseqTools, a standardized data processing pipeline to identify protein-protein interactions from fastq files of PROPER-seq experiments.<br />