Update README.md

README.md

@@ -62,22 +62,25 @@ $$
 where \\(\Delta = \nabla \cdot \nabla\\) is the spatial Laplacian, \\(b\\) is the buoyancy, \\(u = (u_x,u_y)\\) the (horizontal and vertical) velocity, and \\(p\\) is the pressure, \\(\vec{e}_z\\) is the unit vector in the vertical direction, with the additional constraints \\(\int p = 0\\) (pressure gauge).
 
 The boundary conditions vertically are as follows:
-```math
+
+$$
 \begin{align*}
 b(z=0) = Lz ~~~,~~~ b(z=Lz) = 0
 \\
 u(z=0) = u(z=Lz) = 0
 \end{align*}
-```
+$$
 
 These PDE are parameterized by the Rayleigh and Prandtl numbers through \\(\kappa\\) and \\(\nu\\).
-```math
+
+$$
 \begin{align*}
 \text{(thermal diffusivity)} ~~~~~~~ \kappa & = \big(\text{Rayleigh} * \text{Prandtl}\big)^{-\frac12}
 \\
 \text{(viscosity)} ~~~~~~~ \nu & = \bigg(\frac{\text{Rayleigh}}{\text{Prandtl}}\bigg)^{-\frac12}.
 \end{align*}
-```
+$$
+
 ![Gif](https://users.flatironinstitute.org/~polymathic/data/the_well/datasets/rayleigh_benard/gif/buoyancy_good_normalized.gif)
 <!-- <div style="transform: rotate(90deg);">
   <img src="https://users.flatironinstitute.org/~polymathic/data/the_well/datasets/rayleigh_benard/gif/buoyancy_normalized.gif" alt="Rotated GIF">