Update https://docs.oasis.io/build/use-cases/tgbot to use Ollama by default. It's just a matter of setting OLLAMA_MODEL and (optionally) OLLAMA_SYSTEM_PROMPT. Then, merge the `ollama` branch in https://github.com/oasisprotocol/demo-rofl-tgbot.
Update https://docs.oasis.io/build/use-cases/tgbot to use Ollama by default. It's just a matter of setting OLLAMA_MODEL and (optionally) OLLAMA_SYSTEM_PROMPT. Then, merge the
ollamabranch in https://github.com/oasisprotocol/demo-rofl-tgbot.