Rack v1: plugin.json and slug need update

[cschol]

A few issues that need fixing in the v1 branch:

1. sourceUrl should be https://github.com/KarateSnoopy/vcv-karatesnoopy.git (incl. the .git)
2. pluginUrl and manualUrl should point to the README.md of your repository.
3. The slug for the 2D grid sequencer has to adhere to the v1 naming conventions, i.e. it cannot contain whitespace characters. Now, since this has been the slug used in v0.6 for your plugin, you should create the slug as follows: KSnpy2DGridSeq. Rack v1 will ensure backwards compatibility for pre-v1 patches by normalizing the module name on loading the patch, i.e. removing invalid characters. Note, that you also need to update the slug in Seq.cpp.

[KarateSnoopy]

Thanks @cschol . Fixed in 4168a22.