Add note to README.md about package managers

[chausner]

Now that liblsl is available on Conan Center, I suggest to add a note about package managers to the README.md.

[cboulay]

Looks good, thanks!
I'm going to add an issue in sccn/labstreaminglayer and tag you in it about updating the main build docs to add information about how to maintain the vcpk and conan distributions. I don't know where to begin. liblsl 1.16 is out but vcpk is still on 1.14.

[chausner]

liblsl 1.16 is out but vcpk is still on 1.14.

I already submitted an update for the vcpkg port to 0.16.0: microsoft/vcpkg#21284. It has been approved but might take a few days until it's merged.

I'm going to add an issue in sccn/labstreaminglayer and tag you in it about updating the main build docs to add information about how to maintain the vcpk and conan distributions. I don't know where to begin.

Yes, let me summarize the steps needed to update these ports so that you or somebody else can easily keep them up-do-date in the future.

[chausner]

I already submitted an update for the vcpkg port to 0.16.0: microsoft/vcpkg#21284. It has been approved but might take a few days until it's merged.

It's merged now.

[chausner]

@cboulay sccn/labstreaminglayer#97 has been merged. Anything speaking against merging this MR, as well?

[cboulay]

I'm sorry, I thought I already merged it. Thanks again!