plugin support

examples/quickstart/default.nix

@@ -1,4 +1,4 @@
-{ pkgs, brewTea, ... }: brewTea {
+{ pkgs, brewTea, mkMarkdollPlugin }: brewTea {
   name = "examples_quickstart";
   version = "0.0.0";
   
@@ -7,4 +7,11 @@
 
   # maybe don't do this but its possible to reference _any file_.
   defaultLayout = ./layouts/default.html;
+
+  # these are mostly for alias purposes...
+  # can do an [invoke(plural)(...):yay!] type thing
+  # one can invoke stuff inline too without doing this.
+  markdollPlugins = [
+    (mkMarkdollPlugin "plural" ../plugins/plural.sh)
+  ];
 }