correct tests case desciption

source/tests.rst

@@ -4,7 +4,6 @@ Explore the test cases
 
 .. todo::
 
-   CANAL animated gif is missing
 
 .. contents::
    :local:
@@ -153,14 +152,14 @@ This experiment is the classical :cite:`schär.smolarkiewicz_JCP96` test case, w
 ICE_RHEO
 --------
 
-Test ice rheologies. A complete descroption of this test case can be found `here <https://github.com/NEMO-ocean/NEMO-examples/tree/master/ICE_RHEO/EXPREF>`
+Test ice rheologies. A complete descroption of this test case can be found :github:`here <NEMO-examples/tree/master/ICE_RHEO/EXPREF>`
 
 CANAL
 -----
 
 .. figure:: _static/canal.gif
    :width: 200px
-   :align: left
+   :align: right
 
    ..
 
@@ -182,7 +181,7 @@ DIA_GPU
 This is a demonstrator of diagnostic DIAHSB ported to GPU using CUDA Fortran. Memory communications between host and device are asynchronous given the device has that capability. This experiment is target for ORCA2_ICE_PISCES
 
 TSUNAMI
----------
+-------
 
 .. figure:: _static/tsunami.gif
    :width: 200px
@@ -195,11 +194,9 @@ Use only ``dynspg_ts`` to simulate the propagation of an ssh anomaly (cosinus) i
 DONUT
 -----
 
----------
-
 .. figure:: _static/donut.png
    :width: 200px
-   :align: left
+   :align: right
 
    ..
 
@@ -228,7 +225,7 @@ This demonstration test case can be used to perform a sanity test of the SBCBLK
 NEMO (:cite:`brodeau.barnier.ea_JPO16`).  It will test all the bulk-parameterization algorithms using an idealized 
 forcing that includes a wide range of *SSX / surface atmospheric state* 
 conditions to detect potential errors / inconsistencies.  Both a short report and 
-boolean output: *passed* or *failed* is provided as an output. See the complete documentation of STATION_ASF test case `here <https://github.com/NEMO-ocean/NEMO-examples/tree/master/STATION_ASF>`
+boolean output: *passed* or *failed* is provided as an output. See the complete documentation of STATION_ASF test case :github:`here <NEMO-examples/tree/master/STATION_ASF>`
 
 ICB
 ----