[ci skip] modernize doc format in controls.defaults

Author: evbauer

star/defaults/controls.defaults

@@ -6265,11 +6265,16 @@
     mesh_dlog_other_dlogP_extra = 0.25d0
     mesh_dlog_photo_dlogP_extra = 1
 
-         !### convective_bdy_weight
-         !### convective_bdy_dq_limit
-         !### convective_bdy_min_dt_yrs
+      ! convective_bdy_weight
+      ! ~~~~~~~~~~~~~~~~~~~~~
+      ! convective_bdy_dq_limit
+      ! ~~~~~~~~~~~~~~~~~~~~~~~
+      ! convective_bdy_min_dt_yrs
+      ! ~~~~~~~~~~~~~~~~~~~~~~~~~
 
-         ! Mesh function to enhance resolution near convective boundaries
+      ! Mesh function to enhance resolution near convective boundaries
+
+      ! ::
 
       convective_bdy_weight = 0
       convective_bdy_dq_limit = 3d-5