diff --git a/doc/TP_experimental_biologists.md b/doc/TP_experimental_biologists.md
index 2156da17570961bcbf6f8806bdff6ae714a2c3be..44592213c258236b8589ebeec06a1ef4586c7019 100644
--- a/doc/TP_experimental_biologists.md
+++ b/doc/TP_experimental_biologists.md
@@ -92,6 +92,9 @@ git submodule init
 Like for the `src/docker_modules` the [PSMN/modules](https://gitlab.biologie.ens-lyon.fr/PSMN/modules) project describe recepies to install tools and use them. The main difference is that you cannot use [Docker](https://www.docker.com/what-docker) on the PSMN. Instead you have to use another framework [Environement Module](http://www.ens-lyon.fr/PSMN/doku.php?id=documentation:tools:modules) which allows you to load modules for specific tools and version.
 The [README.md](https://gitlab.biologie.ens-lyon.fr/PSMN/modules/blob/master/README.md) file of the [PSMN/modules](https://gitlab.biologie.ens-lyon.fr/PSMN/modules) respository contains all the instruction to be able to load the modules maintained by the LBMC en present in the [PSMN/modules](https://gitlab.biologie.ens-lyon.fr/PSMN/modules) respository.
 
+### `nf_modules`
+
+The `src/nf_modules` folder contains templates of [nextflow](https://www.nextflow.io/) wrapper for the tools available in [Docker](https://www.docker.com/what-docker) and [SGE](http://www.ens-lyon.fr/PSMN/doku.php?id=documentation:tools:sge). The details of the [nextflow](https://www.nextflow.io/) wrapper will be presented in the next section. Alongside the `.nf` and `.config` there is a `tests` folder that contains a `tests.sh` script to run test on the tool.