doc/getting_started.md: add env setup for charliecloud on the psmn

doc/getting_started.md

@@ -42,6 +42,7 @@ src/install_nextflow.sh
 ## Running a toy RNASeq quantification pipeline
 
 To run tests we first need to get a training set
+
 ```sh
 cd data
 git clone https://gitbio.ens-lyon.fr/LBMC/Hub/tiny_dataset.git
@@ -63,16 +64,24 @@ By default le `src/nextflow.config` file define 4 different profiles
 
 - `-profile docker` each process of the pipeline will be executed within a `docker` container locally
 - `-profile singularity` each process of the pipeline will be executed within a `singularity` container locally
-- `-profile psmn` each process will be sent as a separate job within a `singularity` container on the PSMN
+- `-profile psmn` each process will be sent as a separate job within a `charliecloud` container on the PSMN
 - `-profile ccin2p3` each process will be sent as a separate job within a `singularity` container on the CCIN2P3
 
-If the containers are not found locally, they are automatically downloaded before running the process. For the PSMN and CCIN2P3, the `singularity` images are downloaded in a shared folder (`/scratch/Bio/singularity` for the PSMN, and `/sps/lbmc/common/singularity/` for the CCIN2P3)
-
+If the containers are not found locally, they are automatically downloaded before running the process. For the PSMN and CCIN2P3, the `singularity` images are downloaded in a shared folder (`/scratch/Bio/charliecloud` for the PSMN, and `/sps/lbmc/common/singularity/` for the CCIN2P3)
 
 ### PSMN
 
+To have access to `charliecloud` on the PSMN you need to add the followin path to your `PATH` variable:
+
+````
+PATH=/Xnfs/abc/charliecloud_bin/:$PATH
+```
+
+You can add this line in your `~/.bashrc` or `~/.zshrc` file
+
 When running `nextflow` on the PSMN, we recommend to use `tmux` before launching the pipeline:
 
+
 ```sh
 tmux
 ./nextflow src/solution_RNASeq.nf --fastq "data/tiny_dataset/fastq/tiny2_R{1,2}.fastq.gz" --fasta "data/tiny_dataset/fasta/tiny_v2_10.fasta" --bed "data/tiny_dataset/annot/tiny.bed" -profile psmn
@@ -83,10 +92,10 @@ You can re-attach the `tmux` session, with the command `tmux a` (and press `ctrl
 
 ### CCIN2P3
 
-When runnning `nextflow` on the CCIN2P3, you cannot use `tmux`, instead you should send a *daemon* jobs which will launch the `nextflow` command.
+When runnning `nextflow` on the CCIN2P3, you cannot use `tmux`, instead you should send a _daemon_ jobs which will launch the `nextflow` command.
 You can edit the `src/ccin2p3.pbs` file to personalize your `nextflow` command and send it with the command:
 
 ```sh
 qsub src/ccin2p3.pbs
 ```
-
+````