draft-ietf-netmod-immutable-flag-09

Update draft-ietf-netmod-immutable-flag.md

draft-ietf-netmod-immutable-flag-08

update date

draft-ietf-netmod-immutable-flag-07

fix nits

draft-ietf-netmod-immutable-flag-06: Merge pull request #15 from QiufangMa/main

fix nits && yang formating

draft-ietf-netmod-immutable-flag-05: Merge pull request #14 from QiufangMa/main

follow-up comments from Rob and Kent

draft-ietf-netmod-immutable-flag-04: Merge pull request #13 from QiufangMa/main

Fix some nits, eliminate redundant statement, etc

draft-ietf-netmod-immutable-flag-03

Update ietf-immutable-annotation.yang