chore: README changes

Author: achilleas-kal

README.md

@@ -65,21 +65,14 @@ Upgrade `pip` to the latest version, if you see these warnings:
   pip install injective-py
   ```
 
-3. Fetch latest denom config
-```
-poetry run python pyinjective/utils/fetch_metadata.py
-```
-
-Note that the [sync client](https://github.com/InjectiveLabs/sdk-python/blob/master/pyinjective/client.py) has been deprecated as of April 18, 2022. If you are using the sync client please make sure to transition to the [async client](https://github.com/InjectiveLabs/sdk-python/blob/master/pyinjective/async_client.py), for more information read [here](https://github.com/InjectiveLabs/sdk-python/issues/101)
-
-4. Run all unit tests in a development environment
+3. Run all unit tests in a development environment
 ```
 poetry run pytest -v
 ```
 
 ## License
 
-Copyright © 2021 - 2022 Injective Labs Inc. (https://injectivelabs.org/)
+Copyright © 2021 - 2025 Injective Labs Inc. (https://injectivelabs.org/)
 
 <a href="https://drive.google.com/uc?export=view&id=1-fPQRh_D_dnun2yTtSsPW5MypVBOVYJP"><img src="https://drive.google.com/uc?export=view&id=1-fPQRh_D_dnun2yTtSsPW5MypVBOVYJP" style="width: 300px; max-width: 100%; height: auto" />