Add batches to README.md

[Ranjana761]

Added badges in README

[caco3]

Thanks fr your proposal.
How ever I have some remarks and questions about it:

1. The project is based on C++, not Python. Python is only used to train the models, but that happens in separate repos.
2. The release batch shows a non-existent version (1.1.1). Even when I load the svg directly, it shows this (hardcoded?) version: https://img.shields.io/github/v/release/Naereen/StrapDown.js.svg
3. Also the other numbers (forks, downloads, stars) seem to be completely random!

[Ranjana761]

Thanks fr your proposal. How ever I have some remarks and questions about it:

1. The project is based on C++, not Python. Python is only used to train the models, but that happens in separate repos.
2. The release batch shows a non-existent version (1.1.1). Even when I load the svg directly, it shows this (hardcoded?) version: https://img.shields.io/github/v/release/Naereen/StrapDown.js.svg
3. Also the other numbers (forks, downloads, stars) seem to be completely random!

Done with changes.

[caco3]

@jomjol That was a bit fast, the download counter is not correct yet.
@Ranjana761 Do you know why it is still wrong? Can we fix it somehow? It is supposed to be >25k!

-> I fixed it now myself.