Bump nth-check from 1.0.2 to 2.0.1 in /docs

Bumps [nth-check](https://github.com/fb55/nth-check) from 1.0.2 to 2.0.1.
- [Release notes](https://github.com/fb55/nth-check/releases)
- [Commits](https://github.com/fb55/nth-check/compare/v1.0.2...v2.0.1)

---
updated-dependencies:
- dependency-name: nth-check
  dependency-type: direct:production
...

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

docs/package.json

@@ -443,7 +443,7 @@
     "normalize-url": "^5.1.0",
     "npm-run-path": "^4.0.1",
     "nprogress": "^0.2.0",
-    "nth-check": "^1.0.2",
+    "nth-check": "^2.0.1",
     "num2fraction": "^1.2.2",
     "number-is-nan": "^2.0.0",
     "oauth-sign": "^0.9.0",