chore: fix some typos in comments

Signed-off-by: CoolCu <coolcui@qq.com>

electrum/lnpeer.py

@@ -1503,7 +1503,7 @@ class Peer(Logger):
         forwarding_enabled = self.network.config.EXPERIMENTAL_LN_FORWARD_PAYMENTS
         if forwarding_enabled and chan.short_channel_id:
             # send channel_update of outgoing edge to peer,
-            # so that channel can be used to to receive payments
+            # so that channel can be used to receive payments
             self.logger.info(f"sending channel update for outgoing edge ({chan.get_id_for_log()})")
             chan_upd = chan.get_outgoing_gossip_channel_update()
             self.transport.send_bytes(chan_upd)

electrum/plugins/coldcard/README.md

@@ -13,7 +13,7 @@ this reason, all PIN code entry is done directly on the device.
 Coldcard does not appear on the USB bus until unlocked with appropriate
 PIN. Initial setup, and seed generation must be done offline.
 
-Coldcard uses the standard for unsigned tranasctions:
+Coldcard uses the standard for unsigned transactions:
 
 PSBT = Partially Signed Bitcoin Transaction = BIP174
 

electrum/plugins/coldcard/coldcard.py

@@ -105,7 +105,7 @@ class CKCCClient(HardwareClientBase):
         if ((self._expected_device is not None)
                 or (self.dev.master_fingerprint != expected_xfp)
                 or (self.dev.master_xpub != expected_xpub)):
-            # probably indicating programing error, not hacking
+            # probably indicating programming error, not hacking
             _logger.info(f"xpubs. reported by device: {self.dev.master_xpub}. "
                          f"stored in file: {expected_xpub}")
             raise RuntimeError("Expecting %s but that's not what's connected?!" %
@@ -239,7 +239,7 @@ class CKCCClient(HardwareClientBase):
 
     @runs_in_hwd_thread
     def sign_transaction_poll(self):
-        # poll device... if user has approved, will get tuple: (legnth, checksum) else None
+        # poll device... if user has approved, will get tuple: (length, checksum) else None
         return self.dev.send_recv(CCProtocolPacker.get_signed_txn(), timeout=None)
 
     @runs_in_hwd_thread