Update README

Signed-off-by: Shweta Purohit <[email protected]>

Author: shwetapurohit

README.md

@@ -69,11 +69,14 @@ pip install -U lib/*/*.whl
 Install dependencies like *lxml* and *pyvmomi* from PyPI as other requirements were installed from SDK's lib directory
 ```cmd
 pip install -U <SDK_DIRECTORY_PATH>
-eg:pip install -U /root/vsphere-automation-sdk-python
+```
+Where <SDK_DIRECTORY_PATH> is either install directory of the SDK or location of SDK's zip
+e.g.
+```
+pip install -U /root/vsphere-automation-sdk-python
 Or
-pip install -U <sdk.zip>
+pip install -U vsphere-automation-sdk-python-8.0.0.0.zip
 ```
-
 ##### 3. Installation in an air gap environment
 For this type of environment an additional step is required to ensure SDK's dependencies are available.
 Following dependencies have to be downloaded from PyPI and transferred to the air gap environment.