Add initial page for important myst syntax.

doc/sphinx/bibliography.bib

@@ -1,5 +1,5 @@
 %% ASPECT
-@Article{Kronbichler_Heister_Bangerth_2012,
+@Article{Kronbichler_Heister_etal_2012,
   Title   = {High Accuracy Mantle Convection Simulation through Modern Numerical Methods},
   Author  = {M. Kronbichler and T. Heister and W. Bangerth},
   Journal = {Geophysical Journal International},
@@ -101,7 +101,7 @@ @article{McKenzie_1970
   author = "D.P. McKenzie"
 }
 
-@article{Berg_Segal_Yuen_2015,
+@article{Berg_Segal_etal_2015,
  title={{SEPRAN: A Versatile Finite-Element Package for a Wide Variety of Problems in Geosciences}},
  author={A.P. van den Berg and G. Segal and D.A. Yuen},
  journal={Journal of Earth Science},
@@ -120,3 +120,16 @@ @book{turcotte_schubert_2014
   author={Turcotte, Donald and Schubert, Gerald}, 
   year={2014}
 }
+
+
+@Article{Fraters_Thieulot_etal_2019,
+AUTHOR = {Fraters, Menno. R. T. and Thieulot, Cedric and van den Berg, Arie P. and Spakman, W.},
+TITLE = {The Geodynamic World Builder: a solution for complex initial conditions in numerical modeling},
+JOURNAL = {Solid Earth},
+VOLUME = {10},
+YEAR = {2019},
+NUMBER = {5},
+PAGES = {1785--1807},
+URL = {https://se.copernicus.org/articles/10/1785/2019/},
+DOI = {10.5194/se-10-1785-2019}
+}