Update demo-deploy-on-g5k.md

demo-deploy-on-g5k.md

@@ -22,9 +22,9 @@ or
 
 ## Prepare the node to be deployed
 
-- Have submitted this reservation @ `2021-10-20 20:28:45` for today until `2021-10-21 18:00`
+- Have submitted this reservation @ `2021-12-10 09:00` for 4 hours
   ```bash
-  oarsub -t deploy -l host=1 -r "now, 2021-10-21 18:00"
+  oarsub -t deploy -l host=1 -r "2021-12-10 09:00, 2021-12-10 13:00"
   ```
 
 ## On which node ?
@@ -118,3 +118,9 @@ oarsub -S $HOME/myjob.sh
   oarsub -q testing -p "cluster='gruss'" -l gpu=1,core=2 "singularity run --nv docker://tensorflow/tensorflow:latest-gpu"
   ```
 
+### API
+
+- list in a JSON format clusters installed on Nantes site
+  ```bash
+  curl -sSfL -XGET https://api.grid5000.fr/3.0/sites/nantes/clusters | jq
+  ```