Added async OpenAI services (#1)

* added async openai services

* added async openai services

* added Deepgram service with 05 example

* modernized the 'say one thing' example

* async all the things

* cleanup and user greeting

* more cleanup

README.md

@@ -5,12 +5,14 @@ This SDK can help you build applications that participate in WebRTC meetings and
 ## Build/Install
 
 _Note that you may need to set up a virtual environment before following the instructions below. For instance, you might need to run the following from the root of the repo:_
+
 ```
 python3 -m venv env
 source env/bin/activate
 ```
 
 From the root of this repo, run the following:
+
 ```
 pip install -r requirements.txt
 python -m build
@@ -23,6 +25,7 @@ pip install .
 ```
 
 If you want to use this package from another directory, you can run:
+
 ```
 pip install path_to_this_repo
 ```
@@ -44,3 +47,9 @@ AZURE_CHATGPT_KEY
 AZURE_CHATGPT_ENDPOINT
 AZURE_CHATGPT_DEPLOYMENT_ID
 ```
+
+If you have those environment variables stored in an .env file, you can quickly load them into your terminal's environment by running this:
+
+```bash
+$ export $(grep -v '^#' .env | xargs)
+```