Place {{L5}} where normally would be written L5.
Optionally takes an argument nolink=yes to suppress the hyperlink, for use in headings and to avoid overlinking.
Optionally takes an argument pt=yes to append the word "point" or "points".
Optionally takes up to four unnamed parameters to allow the listing of a set of Lagrangian points
Examples
{{L5}}→ L5{{L5|nolink=yes}}→ L5{{L5|2|3|5|pt=yes}}→ L5, L2, L3 and L5 points