Created Submodule modes (org)

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+| Submodule mode | exact | branch | floating |
+| Description | The SHA-1 recorded for the superproject is checked out as a detached HEAD | A local branch is used to integrate both local and upstream changes, still a SHA-1 is recorded to denote the exact submodule commit used | A local branch follows a remote branch, the SHA-1 only serves as an initial starting point and may be updated to record releases or other special occasions |
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