ch-07: mention that CL implements dual-funded channels

07_payment_channels.asciidoc

@@ -281,7 +281,7 @@ Alice *does not broadcast* this transaction, because doing so would put her 140,
 
 .Dual-funded payment channels
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-In the current implementation of Lightning, channels are funded only by the node initiating the channel (Alice in our example). Dual-funded channels have been proposed, but not yet implemented. In a dual-funded channel, both Alice and Bob would contribute inputs to the funding transaction. Dual-funded channels require a slightly more complicated message flow and cryptographic protocol, so they have not been implemented yet but are planned for a future update to the Lightning BOLTs.
+In the current implementation of Lightning, channels are funded only by the node initiating the channel (Alice in our example). Dual-funded channels have been proposed, but not yet implemented. In a dual-funded channel, both Alice and Bob would contribute inputs to the funding transaction. Dual-funded channels require a slightly more complicated message flow and cryptographic protocol, so they have not been implemented yet but are planned for a future update to the Lightning BOLTs. The C-Lightning implementation includes an experimental version of a variant on dual funded channels.
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 ==== Holding signed transactions without broadcasting