Update README.md

Added missing word 'install' in env setup command

README.md

@@ -46,7 +46,7 @@ This model outperforms the baselines and previous version of VLM2Vec by a large
 First you can clone our github
 ```bash
 git clone https://github.com/TIGER-AI-Lab/VLM2Vec.git
-pip -r requirements.txt
+pip install -r requirements.txt
 ```
 
 ```python