Update Distributed training.md

docs/Trainer/Distributed training.md

@@ -88,6 +88,9 @@ module avail
 module load cuda-10.0
 # ------------------------
 
+# make sure you've loaded the latest cuda version on your system
+module load gcc-9.1
+
 $ pip install -v --no-cache-dir --global-option="--cpp_ext" --global-option="--cuda_ext" ./
 ```