Add Thibaut's notebook on weighting strategies (#35)

Add notebook that compares the weighting strategies. The notebooks was
added by @thibaut-kobold in simpeg/simpeg#1310,
and moved to this repo in this PR.

Co-authored-by: Thibaut Astic <[email protected]>

Author: santisoler

myst.yml

@@ -36,6 +36,11 @@ project:
         roles:
           - editing
           - Software
+      - name: Thibaut Astic
+        id: thibautastic
+        affiliations: kobold
+        roles:
+          - writing
   affiliations:
     - id: ubc
       institution: University of British Columbia
@@ -48,6 +53,8 @@ project:
       country: Canada
       postal_code: V6T 1Z4
       phone: 604 822 2449
+    - id: kobold
+      institution: Kobold Metals
   # bibliography: []
   references:
     python: https://docs.python.org/3/
@@ -71,6 +78,7 @@ project:
       - file: notebooks/03-gravity/fwd_gravity_anomaly_3d.ipynb
       - file: notebooks/03-gravity/fwd_gravity_gradiometry_3d.ipynb
       - file: notebooks/03-gravity/inv_gravity_anomaly_3d.ipynb
+      - file: notebooks/03-gravity/weighting_strategies.ipynb
     - file: notebooks/magnetics_index.md
       children:
       - file: notebooks/04-magnetics/fwd_magnetics_induced_3d.ipynb