Added example to README.me showing how to embed a single dictionary.

[WyvernIXTL]

I hadn't thought too hard when reading the examples in README.md and in the documentation and just used the embed_all feature.
That's quite stupid though. A much better way is to embed the dictionary individually.

I just want to give people the idea to do so.

[tapeinosyne]

Thanks.

Truth be told, the library as a whole is overdue an update, and that includes improvements to the way dictionaries are handled. It shouldn't be too long before the next release.

[WyvernIXTL]

Good to hear. Thanks for merging 🙏