[nvim] feat: add underline tex snippet

.config/nvim/after/ftplugin/tex.lua

@@ -116,6 +116,11 @@ ls.snippets = {
                         i(1),
                         t({ "}"}),
                 }),
+                s("uu", {
+                        t({ "\\underline{" }),
+                        i(1),
+                        t({ "}"}),
+                }),
                 s("fsc", {
                         t({ "\\textsc{" }),
                         i(1),