build(deps): bump base-x from 3.0.9 to 3.0.11 in /docs

Bumps [base-x](https://github.com/cryptocoinjs/base-x) from 3.0.9 to 3.0.11.
- [Commits](cryptocoinjs/base-x@v3.0.9...v3.0.11)

---
updated-dependencies:
- dependency-name: base-x
  dependency-version: 3.0.11
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]