Configure typedoc to generate docs

package.json

@@ -22,6 +22,7 @@
     "clean:coverage": "del coverage",
     "clean:dist": "del dist",
     "compile": "tsc -p tsconfig.base.json",
+    "docs": "npx typedoc ./src/",
     "format": "prettier --write \"**/*.{js,ts,tsx}\"",
     "lint": "eslint . --ext .js,.ts",
     "postbundle": "del compiled && cp-cli ./index.js ./dist/index.js",
@@ -115,6 +116,8 @@
     "shelljs": "0.8.3",
     "shelljs-plugin-authors": "2.0.10",
     "ts-jest": "24.0.2",
+    "typedoc": "^0.15.0",
+    "typedoc-plugin-markdown": "^2.1.0",
     "typescript": "3.5.3"
   },
   "lint-staged": {
@@ -122,4 +125,4 @@
       "run-s check:* lint"
     ]
   }
-}
+}