docs: add missing links in README (#39)

* Updated internal URL (Lines 27, 30)

* docs: add link to standard-markdown repo

Co-authored-by: David Sanders <dsanders11@ucsbalum.com>

readme.md

@@ -26,12 +26,12 @@ None
 
 - [chai](https://github.com/chaijs/chai): BDD/TDD assertion library for node.js and the browser. Test framework agnostic.
 - [dugite](https://github.com/desktop/dugite): Elegant bindings for Git
-- [lodash](): Lodash modular utilities.
+- [lodash](https://github.com/lodash/lodash): Lodash modular utilities.
 - [make-promises-safe](https://github.com/mcollina/make-promises-safe): Crash or abort if you get an unhandledRejection
 - [mocha](https://github.com/mochajs/mocha): simple, flexible, fun test framework
-- [semver](): The semantic version parser used by npm.
+- [semver](https://github.com/semver/semver): The semantic version parser used by npm.
 - [standard](https://github.com/standard/standard): JavaScript Standard Style
-- [standard-markdown](): Test your Markdown files for Standard JavaScript Style™
+- [standard-markdown](https://github.com/zeke/standard-markdown): Test your Markdown files for Standard JavaScript Style™
 
 
 ## License