Bump eslint from 3.19.0 to 6.6.0

Bumps [eslint](https://github.com/eslint/eslint) from 3.19.0 to 6.6.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v3.19.0...v6.6.0)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -18,7 +18,7 @@
   },
   "homepage": "https://github.com/hemanth/functional-programming-jargon#readme",
   "devDependencies": {
-    "eslint": "^3.4.0",
+    "eslint": "^6.6.0",
     "eslint-config-standard": "^6.0.0",
     "eslint-plugin-markdown": "^1.0.0-beta.6",
     "eslint-plugin-standard": "^3.0.1",