nf_projects.md: update list

doc/nf_projects.md

 ## Projects using nextflow
 
+This page list existing Nextflow based pipeline projects into different categories
+
+- [RNASeq](./nf_projects.md#rnaseq)
+- [scRNASeq](./nf_projects.m#scrnaseq)
+- [DNASeq](./nf_projects.md#dnaseq)
+- [ChipSeq](./nf_projects.md#chipseq)
+
+To add your project to this list, please fork this project, modify this file and make a merge request.
+![merge request button](./img/merge_request.png)
+
 ### RNASeq
 
 - [https://_https://gitlab.biologie.ens-lyon.fr/gylab/salmoninyeast](https://_https://gitlab.biologie.ens-lyon.fr/gylab/salmoninyeast)
@@ -7,15 +17,18 @@
 - [https://_https://gitlab.biologie.ens-lyon.fr/vvanoost/nextflow](https://_https://gitlab.biologie.ens-lyon.fr/vvanoost/nextflow)
 - [https://gitlab.biologie.ens-lyon.fr/elabaron/HIV_project](https://gitlab.biologie.ens-lyon.fr/elabaron/HIV_project)
 
-### single-cell RNA_-Seq
+### scRNASeq
 
 - [https://gitlab.com/LBMC_UMR5239/sbdm/mars-seq](https://gitlab.com/LBMC_UMR5239/sbdm/mars-seq)
 
 ### DNASeq
 
 - [https://github.com/LBMC/ChrSexebelari](https://github.com/LBMC/ChrSexebelari)
+- [https://gitbio.ens-lyon.fr/LBMC/gylab/MappingNoise](https://gitbio.ens-lyon.fr/LBMC/gylab/MappingNoise)
+- [https://gitbio.ens-lyon.fr/LBMC/qrg/droso_hic_group/droso_haplo_rna_seq](https://gitbio.ens-lyon.fr/LBMC/qrg/droso_hic_group/droso_haplo_rna_seq)
 
 ### Chip-Seq
 
 - [https://gitlab.biologie.ens-lyon.fr/Auboeuf/ChIP-seq](https://gitlab.biologie.ens-lyon.fr/Auboeuf/ChIP-seq)
+- [https://gitbio.ens-lyon.fr/LBMC/Bernard/quantitative-nucleosome-analysis](https://gitbio.ens-lyon.fr/LBMC/Bernard/quantitative-nucleosome-analysis)