Auto merge of #161 - goffrie:patch-1, r=KiChjang

Add a missing `SchemeType::` in doc

What it says on the tin.

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src/lib.rs

@@ -415,7 +415,7 @@ impl<'a> UrlParser<'a> {
     ///         "https" => SchemeType::Relative(443),
     ///         "ws" => SchemeType::Relative(80),
     ///         "wss" => SchemeType::Relative(443),
-    ///         _ => NonRelative,
+    ///         _ => SchemeType::NonRelative,
     ///     }
     /// }
     /// ```