README: add import and client initialization as comments for each code block

[adriantam]

In the SDK README, for each code block examples, it will be helpful if

• import modules are noted as comments
• client initialization are noted as comments

For example,

body = CreateStoreRequest(
    name = "FGA Demo Store",
)
response = await fga_client.create_store(body)
# response.id = "01FQH7V8BEG3GPQW93KTRFR8JB"

should be

#from openfga_sdk.client import OpenFgaClient
#from openfga_sdk.models.create_store_request import CreateStoreRequest

# initialize fga_client
body = CreateStoreRequest(
    name = "FGA Demo Store",
)
response = await fga_client.create_store(body)
# response.id = "01FQH7V8BEG3GPQW93KTRFR8JB"

We want to do this for the examples listed in https://github.com/openfga/python-sdk/blob/main/README.md. Ideally, we will also fix the SDK generator so that newly generated python SDKs will have the corresponding changes. This is tracked as openfga/sdk-generator#126. However, if that is difficult to do, simply focusing on the Python SDK side https://github.com/openfga/python-sdk/blob/main/README.md will help us as well.

[JRudransh]

Please assign it to me

[JRudransh]

Any Update on my PR?

[rhamzeh]

Thanks for the PR @JRudransh - we won't get to reviewing it this week as the team is busy in an offsite, but we'll be taking a look early next week.

[JRudransh]

PR #63 Fixes this Issue