Update tag in readme (vllm-project#39)

Author: kzawora-intel

README_GAUDI.md

@@ -52,7 +52,7 @@ To build and install vLLM-fork from source, run:
 ``` {.console}
 $ git clone https://github.com/HabanaAI/vllm-fork.git
 $ cd vllm-fork
-# git checkout 0.4.2-Gaudi-1.16.0
+# git checkout v0.4.2-Gaudi-1.16.0
 $ pip install -e .  # This may take 5-10 minutes.
 ```
 

docs/source/getting_started/gaudi-installation.rst

@@ -61,7 +61,7 @@ To build and install vLLM-fork from source, run:
 
    $ git clone https://github.com/HabanaAI/vllm-fork.git
    $ cd vllm-fork
-   # git checkout 0.4.2-Gaudi-1.16.0
+   # git checkout v0.4.2-Gaudi-1.16.0
    $ pip install -e .  # This may take 5-10 minutes.
 
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