Add TypeScript Declaration File.

[zhzLuke96]

Problem

Add TypeScript type definitions for the pdf2md library to improve integration with TypeScript projects.

Solution

Wrote a types/pdf2md.d.ts type definition file with declarations for the pdf2md interface.

Features:

• Added a complete types/pdf2md.d.ts type definition file declaring the externally exposed interfaces of pdf2md

Improvements:

• Define the function type of pdf2md() in types/pdf2md.d.ts to document details of the interfaces

[LoneRifle]

lgtm

[inimeseke]

The TS definition file is not included in the NPM package at the moment.

I think that this change should be made in package.json

"files": [
"/lib",
"/test",
"/types"
],

[inimeseke]

I would do it, but I don't know how to use Github properly

[zhzLuke96]

The TS definition file is not included in the NPM package at the moment.

I think that this change should be made in package.json

"files": [ "/lib", "/test", "/types" ],

Oops, this my bad...
This change requires the package owner to repackage and republish, but before that, a new PR is needed to modify the package.json.
If @inimeseke you'd like to fix it, you can: fork it => fix it => submit a PR. Thank you.