Minor fixes to the README

Update generator binary and version file for v0.9.0

Support passing in individual Swift source files (uber#220)

This makes debugging and testing easier. I also intent to use this as the test method for Homebrew formula.

Add v0.8.4 executable binary (uber#195)

Update generator binary to v0.8.2 (uber#191)

* Update generator binary to v0.8.2

* Update binary to include customizing timeout values commit

Merge pull request uber#185 from uber/generator-release_0.8.1-master

Generator v0.8.1 release

Merge pull request uber#165 from uber/generator-add_release_binary-ma…

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Add release binary of version 0.8.0

Merge pull request uber#146 from uber/foundation-typo-master

Fix typo in Foundation protocol

Merge pull request uber#144 from uber/foundation-release_lifecycle-ma…

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Bound PluginizedComponent purely to PluginizedScopeLifecycle

Merge pull request uber#109 from uber/foundation-plugin_ext_key-master

PluginExtensionProvider is unique per PluginizedComponent regardless …