Add CONTRIBUTION.md

[artalar]

Please, add CONTRIBUTION.md with a description of how to and where add changes, build, run performance tests.

[ai]

Please send PR (not avoid obvious thing focusing on difference in the project).

To run them you need to call node ./test/benchmark.js.

[artalar]

@ai
The problem is that I don't get your development flow and can't understand it shortly %)
I spend ~20min on trying to set changes to the code but got nothing. I did not find a build script and suggested that it doing by size-limit.., I try to del some code from index.js, but did not see any changes after restart size-limit script.
So... Please, describe it yourself. For me, two main questions are: what file is main and original (I found many copies of the same code) and how to rebuild it.

[ai]

what file is main and original (I found many copies of the same code) and how to rebuild it.

There is no way to re-build it. You need to copy-paste code between files.

This is why there is no origin.

[naftalmm]

@ai
As far as I get it, size-limit analizes size of index.browser.js, async/index.browser.js & non-secure/index.js files.
Does it make sence to optimize size of other production files (index.js, async/index.js, async/index.native.js)? I see there comments about some size-optimizing tricks, but I don't see a nice automated way to proof size decrease.

[ai]

Does it make sence to optimize size of other production files (index.js, async/index.js, async/index.native.js)?

Nope

I see there comments about some size-optimizing tricks, but I don't see a nice automated way to proof size decrease.

It is just the result of copy-pasting the description and already optimized code from browser’s versions

[Beraliv]

@ai is it still helpful to have CONTRIBUTION.md? I'm happy to create a PR for it if you don't mind

[ai]

@Beraliv do you think we need one? Looks like the project is stable and do not need new feature or many contributions these days.

[ai]

Closing since we do not expect many PRs since it is mature project