Add "chamelon" to the related projects section.

[yomimono]

"chamelon" implements a subset of littlefs (no global move state or
singly-linked list threaded through the directory tree) for use in the
MirageOS library operating system project. It is written entirely in
OCaml and is interoperable (with the above caveats) with the reference
implementation via FUSE.

[geky]

Hi @yomimono, this really interesting work! Thanks for creating a PR.

Unfortunately I don't think the README is the correct place for this. I have had plans to create a wiki/website with a page for community projects, but I haven't been able to get to it yet due to other things. Until that is ready I'm going to keep this PR open. Sorry there's not a better place to share this at the moment.

[yomimono]

OK! Thanks for your response. I'll close this and let future contributors include chamelon, or choose not to do so, as is appropriate with the context at the time.

[geky]

Hi @yomimono, I've changed my mind on this. Delays on my end shouldn't be limiting reach of other work people have done with littlefs.

chameleon is quite an interesting project and deserves to be shared. OCaml is certainly not the first language I would think of for implementing parts of a filesystem.

Let me know if you are opposed to this, otherwise I'll go ahead and bring this in on the next minor release, and eventually move these links to an out-of-tree wiki.

Sorry about the run-around.