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README.md

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 # T2T-HG002Y
 Code repository for the T2T-Y paper
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+This repository contains custom codes for data anslysis and visualization described in [The complete sequence of a human Y chromosome](https://doi.org/10.1101/2022.12.01.518724). 
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+## External repositories
+* Assembly string graph construction and resoultion: https://github.com/snurk/sg_sandbox
+* 1KGP and SGDP short-read variant calling: https://github.com/schatzlab/t2t-chm13-chry
+* Resources available for T2T-CHM13v2.0 as a reference: https://github.com/marbl/CHM13
+* Known issues in T2T-CHM13v2.0: https://github.com/marbl/CHM13-Issues