LaTeX snippets: add skips

luasnippets/tex.lua

@@ -45,4 +45,16 @@ return {
   s({ trig = "ii", dscr = "Insert an item" },
     fmt("\\item ", {})
   ),
+
+  s({ trig = "ss", dscr = "Insert a small skip" },
+    fmt("\\smallskip", {})
+  ),
+
+  s({ trig = "ms", dscr = "Insert a medium skip" },
+    fmt("\\medskip", {})
+  ),
+
+  s({ trig = "bs", dscr = "Insert a big skip" },
+    fmt("\\bigskip", {})
+  ),
 }