README: mark CLN compatible commands

Author: guggero

README.md

@@ -9,7 +9,9 @@
 * [Commands](#commands)
 
 This tool provides helper functions that can be used to rescue funds locked in
-`lnd` channels in case `lnd` itself cannot run properly anymore.
+`lnd` channels in case `lnd` itself cannot run properly anymore (some commands
+also support Core Lightning (CLN), check [command overview](#commands) below
+for a list of compatible commands).
 
 **WARNING**: This tool was specifically built for a certain rescue operation and
 might not be well-suited for your use case. Or not all edge cases for your needs
@@ -30,7 +32,7 @@ Example (make sure you always use the latest version!):
 
 ```shell
 $ cd /tmp
-$ wget -O chantools.tar.gz https://github.com/lightninglabs/chantools/releases/download/v0.13.4/chantools-linux-amd64-v0.13.4.tar.gz
+$ wget -O chantools.tar.gz https://github.com/lightninglabs/chantools/releases/download/v0.13.7/chantools-linux-amd64-v0.13.7.tar.gz
 $ tar -zxvf chantools.tar.gz
 $ sudo mv chantools-*/chantools /usr/local/bin/
 ```
@@ -472,6 +474,8 @@ Legend:
 - :skull: Danger of loss of funds, only use when instructed to.
 - :pushpin: Command was created for a very specific version or use case and most
   likely does not apply to 99.9% of users
+- **CLN**: Command is compatible with Core Lightning (CLN), use `--hsm_secret`
+  flag instead of root key or wallet.
 
 | Command                                                     | Use when                                                                                                                                 |
 |-------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------|
@@ -482,7 +486,7 @@ Legend:
 | [deletepayments](doc/chantools_deletepayments.md)           | Remove ALL payments from a `channel.db` file to reduce size                                                                              |
 | [derivekey](doc/chantools_derivekey.md)                     | :pencil: Derive a single private/public key from `lnd`'s seed, use to test seed                                                          |
 | [doublespendinputs](doc/chantools_doublespendinputs.md)     | :pencil: Tries to double spend the given inputs by deriving the private for the address and sweeping the funds to the given address      |
-| [dropchannelgraph](doc/chantools_dropchannelgraph.md)       | (:warning:) Completely drop the channel graph from a `channel.db` to force re-sync                                                       |
+| [dropchannelgraph](doc/chantools_dropchannelgraph.md)       | ( :warning: ) Completely drop the channel graph from a `channel.db` to force re-sync (not recommended while channels are open!)          |
 | [dropgraphzombies](doc/chantools_dropgraphzombies.md)       | Drop all zombie channels from a `channel.db` to force a graph re-sync                                                                    |
 | [dumpbackup](doc/chantools_dumpbackup.md)                   | :pencil: Show the content of a `channel.backup` file as text                                                                             |
 | [dumpchannels](doc/chantools_dumpchannels.md)               | Show the content of a `channel.db` file as text                                                                                          |
@@ -503,13 +507,13 @@ Legend:
 | [signpsbt](doc/chantools_signpsbt.md)                       | :pencil: Sign a Partially Signed Bitcoin Transaction (PSBT)                                                                              |
 | [signrescuefunding](doc/chantools_signrescuefunding.md)     | :pencil: (:pushpin:) Sign to funds from a funding transaction. Deprecated, use [zombierecovery](doc/chantools_zombierecovery.md) instead |
 | [summary](doc/chantools_summary.md)                         | Create a summary of channel funds from a `channel.db` file                                                                               |
-| [sweepremoteclosed](doc/chantools_sweepremoteclosed.md)     | :pencil: Find channel funds from remotely force closed channels and sweep them                                                           |
+| [sweepremoteclosed](doc/chantools_sweepremoteclosed.md)     | :pencil: **CLN** Find channel funds from remotely force closed channels and sweep them                                                   |
 | [sweeptimelock](doc/chantools_sweeptimelock.md)             | :pencil: Sweep funds in locally force closed channels once time lock has expired (requires `channel.db`)                                 |
 | [sweeptimelockmanual](doc/chantools_sweeptimelockmanual.md) | :pencil: Manually sweep funds in a locally force closed channel where no `channel.db` file is available                                  |
-| [triggerforceclose](doc/chantools_triggerforceclose.md)     | :pencil: (:pushpin:) Request a peer to force close a channel                                                                             |
+| [triggerforceclose](doc/chantools_triggerforceclose.md)     | :pencil: **CLN** (:pushpin:) Request a peer to force close a channel                                                                     |
 | [vanitygen](doc/chantools_vanitygen.md)                     | Generate an `lnd` seed for a node public key that starts with a certain sequence of hex digits                                           |
 | [walletinfo](doc/chantools_walletinfo.md)                   | Show information from a `wallet.db` file, requires access to the wallet password                                                         |
-| [zombierecovery](doc/chantools_zombierecovery.md)           | :pencil: Cooperatively rescue funds from channels where normal recovery is not possible (see [full guide here][zombie-recovery])         |
+| [zombierecovery](doc/chantools_zombierecovery.md)           | :pencil: **CLN** Cooperatively rescue funds from channels where normal recovery is not possible (see [full guide here][zombie-recovery]) |
 
 [safety]: https://github.com/lightningnetwork/lnd/blob/master/docs/safety.md