Improve spacing around tables in final examples

main.tex

@@ -1760,6 +1760,7 @@ def bound_comparisons(example):
 qs, theorem2_bounds, theorem3_bounds = bound_comparisons(recurring)
 \end{sagesilent}
 
+\vspace{1em}
 \noindent
 \directlua{ table_width = 3*4+1 }
 \begin{tabular}{l\directlua{for i=0,table_width-1 do tex.sprint([[|c]]) end}}
@@ -1781,7 +1782,9 @@ end}
   tex.sprint(cell)
 end}
 \end{tabular}
+\vspace{1em}
 
+\noindent
 It's worth noting that the bounds given by theorem \ref{thm:rmax_with_eps1}
 reach, but do not exceed the actual maximum rank 25 of the
 pseudo-semistabilizers of $v$ in this case.
@@ -1810,6 +1813,7 @@ qs, theorem2_bounds, theorem3_bounds = bound_comparisons(extravagant)
 \end{sagesilent}
 
 
+\vspace{1em}
 \noindent
 \directlua{ table_width = 12 }
 \begin{tabular}{l\directlua{for i=0,table_width do tex.sprint([[|c]]) end}}
@@ -1834,6 +1838,7 @@ end}
 end}
 	&$\cdots$
 \end{tabular}
+\vspace{1em}
 
 
 \noindent