Add quotes in pip install line, as required by zsh #85

Job	Run time
warn	0s
open_in_colab (firedrake, ngsolve@current%netgen firedrake==real@current , "*/tutorial__firedra... / run	4m 20s
open_in_colab (dolfinx, gmsh@current%dolfinx.io fenicsx==real@current$dolfinx , "*/tutorial__do... / run	4m 4s
open_in_kaggle (dolfinx, gmsh@current%dolfinx.io fenicsx==real@current$dolfinx , "*/tutorial__d... / run	4m 41s
open_in_kaggle (firedrake, ngsolve@current%netgen firedrake==real@current , "*/tutorial__firedr... / run	6m 8s
	19m 13s

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