Added extras for synapse (#916)

* Added extras for synapse

* Update Installation doc

setup.py

@@ -114,6 +114,7 @@ setuptools.setup(
         ],
         "benchmark": ["catboost>=0.26", "psutil==5.8.0", "xgboost==1.3.3"],
         "openai": ["openai==0.23.1", "diskcache", "optuna==2.8.0"],
+        "synapse": ["joblibspark>=0.5.0", "optuna==2.8.0", "pyspark>=3.0.0"],
     },
     classifiers=[
         "Programming Language :: Python :: 3",

website/docs/Installation.md

@@ -81,6 +81,12 @@ pip install flaml[nni]
 pip install flaml[blendsearch]
 ```
 
+* synapse
+> *To install flaml in Azure Synapse and similar cloud platform*
+```bash
+pip install flaml[synapse]
+```
+
 #### Test and Benchmark
 
 * test