nit: improve PSBT_IN_MUSIG2_PARTIAL_SIG wording #2028

1. 
   scgbckbone commented at 1:20 am on November 2, 2025: contributor
2. nit: improve PSBT_IN_MUSIG2_PARTIAL_SIG wording 65daaf2fa3
3. murchandamus added the label Proposed BIP modification on Nov 3, 2025
4. murchandamus added the label Pending acceptance on Nov 3, 2025
5. 
   murchandamus commented at 8:21 pm on November 3, 2025: contributor

   cc: @achow101 for sign-off

Contributors
scgbckbone murchandamus

Labels
Proposed BIP modification Pending acceptance