Merge bitcoin/bitcoin#22538: doc: fix command typo in guix README

198ceb82f9 script, doc: guix touchups (jonatack)
d7b7f610a5 Updated Readme, Corrected the codesign typo (h)

Pull request description:

ACKs for top commit:
  jamesob:
    ACK https://github.com/bitcoin/bitcoin/pull/22538/commits/198ceb82f91bfdeac6e143ca7433f4a524f6f36f
  jonatack:
    ACK 198ceb82f9

Tree-SHA512: 408360cebb51cff330fdd5d5d8ae91a168cdc99fb1377913fd9119e6eba536e58f87ff5c5b479e21a21fa3403323b137c338005bbd67e6fd24314929cdff9325

doc/build-openbsd.md

@@ -68,7 +68,7 @@ export AUTOMAKE_VERSION=1.16
 Make sure `BDB_PREFIX` is set to the appropriate path from the above steps.
 
 Note that building with external signer support currently fails on OpenBSD,
-hence you have to explicitely disable it by passing the parameter
+hence you have to explicitly disable it by passing the parameter
 `--disable-external-signer` to the configure script.
 (Background: the feature requires the header-only library boost::process, which
 is available on OpenBSD 6.9 via Boost 1.72.0, but contains certain system calls