Update README.md

Signed-off-by: PeganovAnton <[email protected]>

Author: PeganovAnton

README.md

@@ -30,8 +30,9 @@ case and deliver real-time performance. This repo provides performant client exa
 ## Installation
 
 1. Create a ``conda`` environment and activate it
-2. Clone ``riva-python-clients`` repo and change to the repo root
-3. Run commands
+2. From source: 
+    - Clone ``riva-python-clients`` repo and change to the repo root
+    - Run commands
 
 ```bash
 git submodule init
@@ -40,6 +41,10 @@ pip install -r requirements.txt
 python3 setup.py bdist_wheel
 pip install --force-reinstall dist/*.whl
 ```
+3. `pip`:
+```bash
+pip install riva-api
+```
 
 If you would like to use output and input audio devices 
 (scripts `scripts/asr/transcribe_file_rt.py`, `scripts/asr/transcribe_mic.py`, `scripts/tts/talk.py` or module