Update docs

docs/tags/import.md

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+Tag {import}
+============
+
+```smarty
+{import 'page.macros.tpl'}
+```

docs/tags/macros.md

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+Tag {macros}
+============
+
+
+```smarty
+declare macros
+
+{macros.paginator(current, total, skip=true)}
+    ... paginator code ...
+{/macros}
+...
+invoke macros
+
+{macros.paginator current=$page total=100}
+```