Bump ini from 1.3.5 to 1.3.8 in /demo

Bumps [ini](https://github.com/isaacs/ini) from 1.3.5 to 1.3.8.
- [Release notes](https://github.com/isaacs/ini/releases)
- [Commits](npm/ini@v1.3.5...v1.3.8)

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

Merge pull request #5 from TarVK/dependabot/npm_and_yarn/demo/acorn-6…

….4.1

Bump acorn from 6.3.0 to 6.4.1 in /demo

Merge pull request #2 from TarVK/dependabot/npm_and_yarn/mixin-deep-1…

….3.2

Bump mixin-deep from 1.3.1 to 1.3.2