docs(Selection): Add paraview remote rendering selection example

examples/07_paraview/Picking/README.md

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+## Running example require ParaView 5.10+
+
+Setup a local venv with `trame` installed
+
+```python
+python3.9 -m venv .venv
+source .venv/bin/activate
+pip install -U pip
+pip install trame
+
+export PV_VENV=$PWD/.venv
+```
+
+Assuming you are in the directory that contains the `pv_selection.py` file you should be able to execute the following command to start the example application:
+
+```bash
+# My local ParaView setup
+export PVPYTHON=/Applications/ParaView-5.11.0.app/Contents/bin/pvpython
+
+$PVPYTHON -m paraview.apps.trame --trame-app pv_selection
+```
+
+## Runtime error
+
+You may have to patch the method listed on the Python exception by replacing the method content by just a `pass`. That method is supposed to extract all the build settings and fail to import a file that get deleted at install phase. For ParaView it is safe to skip that method content.