Check-Docker-image.md

+## To Check the image has been pulled :
+
+- Have a look to your image:\
+  `$ docker images`\
+  On standard output, you should have a line of the form 
+
+```
+gricad-registry.univ-grenoble-alpes.fr/talks/fidle/fidle_cpu   python3.7 [...]  6.05GB
+```
+
+- You can test it :\
+  `$ docker run --rm gricad-registry.univ-grenoble-alpes.fr/talks/fidle/fidle_cpu:python3.7 fid check`\
+  You should see printed the following lines (version numbers may change) :
+
+```
+==========================================================
+fid - Your favorite Fidle admin command :-)    (v2.0b47)
+==========================================================
+
+Notebooks and datasets can only be found if they are in/near the explored folder.
+Explored directory is : /notebooks
+
+Datasets dir found : 
+
+    //data/datasets-fidle                                (Datasets Fidle / 1.6)
+    The environment variable FIDLE_DATASETS_DIR is :     /data/datasets-fidle
+
+Notebooks dir found : 
+
+    //notebooks/fidle-master                             (Notebooks Fidle / 2.2.2)
+    /notebooks/fidle-master                              (Notebooks Fidle / 2.2.2)
+
+Check environment : 
+
+    Python               : Ok         (3.7.15)
+    Fidle module         : Ok         (2.0b47)
+    tensorflow           : Ok         (2.9.0)
+    tensorflow.keras     : Ok         (2.9.0)
+    numpy                : Ok         (1.21.6)
+    sklearn              : Ok         (1.0.2)
+    skimage              : Ok         (0.19.3)
+    matplotlib           : Ok         (3.5.3)
+    plotly               : Ok         (5.10.0)
+    pandas               : Ok         (1.3.5)
+    jupyterlab           : Ok         (3.4.8)
+    torch                : Ok         (1.12.1+cu102)
+    torchvision          : Ok         (0.13.1+cu102)
+```
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