v0.1.1 Release

4c0626c chore: add prepare script and bump the version (#431)
1d672e0 docs: fix broken links (#428)
5ddf65d docs(exporter-jaeger): fix jaeger version (#430)
52d3dc3 fix(plugin-http): ensure no leaks (#398)
8b20e41 Update readme (#421)
6481e3d refactor: cal duration once instead of each get duration call (#412)
d60d3dc chore: add npm version badge (#414)