URL in README of typing packages

[FranklinYu]

For example, @types/lodash says

Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped.git/tree/master/types/lodash

Note the .git extension. That URL is a 404. Correct URL is https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/lodash. The line is generated in

https://github.com/Microsoft/types-publisher/blob/e40d8bcd9fa7eaf330b195f7a22110a6f1c0d454/src/lib/package-generator.ts#L163

So typing.sourceRepoURL seems to have the .git extension, while it shouldn't be. The typing information tracks to PackageBase.sourceRepoURL, which is assigned in

https://github.com/Microsoft/types-publisher/blob/e40d8bcd9fa7eaf330b195f7a22110a6f1c0d454/src/lib/packages.ts#L182-L186

But BaseRaw.sourceRepoURL says that .git extension should not be there in the first place:

https://github.com/Microsoft/types-publisher/blob/e40d8bcd9fa7eaf330b195f7a22110a6f1c0d454/src/lib/packages.ts#L165-L166

[mhegazy]

A PR would be appreciated.