readme update

README.md

@@ -103,6 +103,7 @@ When deploying the application, the following environment variables can be set:
 | OPENAI_ORGANIZATION               |                                | Your OpenAI organization ID                                                                                                               |
 | DEFAULT_MODEL                     | `gpt-3.5-turbo`                | The default model to use on new conversations, for Azure use `gpt-35-turbo`                                                               |
 | NEXT_PUBLIC_DEFAULT_SYSTEM_PROMPT | [see here](utils/app/const.ts) | The default system prompt to use on new conversations                                                                                     |
+| NEXT_PUBLIC_DEFAULT_TEMPERATURE   | 1                              | The default temperature to use on new conversations                                                                                       |
 | GOOGLE_API_KEY                    |                                | See [Custom Search JSON API documentation][GCSE]                                                                                          |
 | GOOGLE_CSE_ID                     |                                | See [Custom Search JSON API documentation][GCSE]                                                                                          |