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doc/todo/metadata.mdwn

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+There should be a way to add metadata to a page. Probably a plugin could do
+this, for example:
+
+	\\[[meta foo="bar"]]
+
+Uses for this include:
+
+* Setting a page title that's not tied to the filename.
+* Any metadata that's generally useful on html pages.
+* Maybe as an alternate way to tag a page, like linking to the tag,
+  except it doesn't have to show up in the page text.