readme: add migration error codes and their causes · intel/MigTD@2f1d1e1

/home/runner/work/MigTD/MigTD/src/devices/vsock/Cargo.toml: unused manifest key: dependencies.td-payload.feature

Run cargo check: deps/td-shim/library/ring/src/lib.rs#L47

unexpected `cfg` condition name: `pregenerate_asm_only`

Run cargo check: deps/td-shim/library/ring/src/prefixed.rs#L45

unexpected `cfg` condition value: `aarc64`

Run cargo check: deps/td-shim/library/ring/src/rsa/padding.rs#L21

unused imports: `PKCS1` and `PSS`

`ring` (lib) generated 3 warnings (run `cargo fix --lib -p ring` to apply 1 suggestion)

Run cargo check: src/migtd/src/migration/session.rs#L20

unused import: `crate::ratls`

Run cargo check: src/migtd/src/migration/session.rs#L23

constant `TDCS_FIELD_MIG_DEC_KEY` is never used

Run cargo check: src/migtd/src/migration/session.rs#L24

constant `TDCS_FIELD_MIG_ENC_KEY` is never used

Run cargo check: src/migtd/src/migration/session.rs#L25

constant `TDCS_FIELD_MIG_VERSION` is never used

Run cargo check: src/migtd/src/migration/session.rs#L27

constant `GSM_FIELD_MIN_EXPORT_VERSION` is never used

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The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

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