Diff: features/FEATURE_COMMON_PAL/nanostack-hal-mbed-cmsis-rtos/nvm/README.md

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+This directory is used as a git subtree. The master copy is at
+
+    https://github.com/ARMmbed/nanomesh-applications/tree/nvm
+
+(ie the nvm branch of that repository).
+
+If you are seeing this as a subdirectory of another repository,
+or in Platforms/common/nvm of the same repository, it has been
+pulled in via git subtree.
+
+You should not normally edit files in this directory unless you are
+working on the nvm branch in a clone of the master repository.
+
+Changes to the nvm code would be done as follows:
+
+    # nvm branch is the "master" for the code
+    git checkout nvm
+
+    # make and commit changes
+    git checkout master
+    git subtree merge -P Platforms/common/nvm nvm
+
+To take the latest version of the nvm reference code into another
+repository already containing it as a subtree, use the command:
+
+    git subtree pull -P our/path/to/nvm \
+            git@github.com:ARMmbed/nanomesh-applications nvm
+
+To take this code into use as a subtree for the first time,
+use the command:
+
+    git subtree add -P our/path/to/nvm \
+            git@github.com:ARMmbed/nanomesh-applications nvm
+
+See 'git help subtree' for more information.
+