refactor: rename dynamo_check.py to sanity_check.py (#3423)

Signed-off-by: Keiven Chang <keivenchang@users.noreply.github.com>

.devcontainer/post-create.sh

@@ -123,7 +123,7 @@ else
     echo "⚠️ SSH agent forwarding not configured - SSH_AUTH_SOCK is not set"
 fi
 
-show_and_run $DYNAMO_HOME/deploy/dynamo_check.py
+show_and_run $DYNAMO_HOME/deploy/sanity_check.py
 
 cat <<EOF
 

README.md

@@ -114,6 +114,16 @@ uv pip install "ai-dynamo[sglang]"  #replace with [vllm], [trtllm], etc.
 
 ## 3. Run Dynamo
 
+### Sanity check (optional)
+
+Before trying out Dynamo, you can verify your system configuration and dependencies:
+
+```bash
+./deploy/sanity_check.py
+```
+
+This is a quick check for system resources, development tools, LLM frameworks, and Dynamo components.
+
 ### Running an LLM API server
 
 Dynamo provides a simple way to spin up a local set of inference components including:

deploy/dynamo_check.py

+sanity_check.py
\ No newline at end of file