Examples folder default permission
Examples folder default permission

When running the container and building the examples, the following error occurs:
Error: EACCES: permission denied, open '/home/node/examples/browser/browser-webpack-example/bundle.js'

Commands used:
```
docker build -t orbit-db -f docker/Dockerfile . --no-cache
docker run -ti --rm orbit-db npm run build:examples
```
orbitdb/orbit-db,haadcode/orbit-db,orbitdb/orbit-db,haadcode/orbit-db