refine installation doc 2

.github/workflows/integration-test.yml

@@ -37,7 +37,6 @@ jobs:
     - name: Install dependencies
     #  if: steps.cache.outputs.cache-hit != 'true'
       run: |
-        lsb_release -a
         pip install tensorflow==1.15.0
         pip install onnx==1.9.0
         pip install torch==1.9.0

docs/quick_start.md

@@ -2,7 +2,7 @@
 
 ## nn-Meter Installation
 
-Currently, nn-Meter has been tested on Linux and Windows system. Windows 10, Ubuntu 16.04, 20.04 and Ubuntu latest (TODO: check the Ubuntu latest version) with python 3.6.10 are tested and supported. Please first install `python3` before nn-Meter installation.
+Currently, nn-Meter has been tested on Linux and Windows system. Windows 10, Ubuntu 16.04 and 20.04 with python 3.6.10 are tested and supported. Please first install `python3` before nn-Meter installation.
 
 To install the latest version of nn-Meter, you should install the package through source code. First git clone nn-Meter package to local:
 ```Bash