README update for Azure

.gitignore

@@ -1,6 +1,7 @@
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]
+.DS_Store
 
 # C extensions
 *.so

README.md

@@ -57,8 +57,26 @@ Proceed to the OS-specific instructions below.
 
 **Azure**
 
-* Launch an Ubuntu/RHEL/Centos Virtual machine with an ``N*`` GPU compute SKU, e.g., NC6 (hdd)
+* Launch an Ubuntu 16.04 Virtual machine with an ``N*`` GPU compute SKU, e.g., NC6 (hdd)
 * Enable SSH/HTTP/HTTPS
+* Check to make sure GPU is attached 
+
+```
+$ lspci -vnn | grep VGA -A 12
+0000:00:08.0 VGA compatible controller [0300]: Microsoft Corporation Hyper-V virtual VGA [1414:5353] (prog-if 00 [VGA controller])
+	Flags: bus master, fast devsel, latency 0, IRQ 11
+	Memory at f8000000 (32-bit, non-prefetchable) [size=64M]
+	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
+	Kernel driver in use: hyperv_fb
+	Kernel modules: hyperv_fb
+
+5dc5:00:00.0 3D controller [0302]: NVIDIA Corporation GK210GL [Tesla K80] [10de:102d] (rev a1)
+	Subsystem: NVIDIA Corporation GK210GL [Tesla K80] [10de:106c]
+	Flags: bus master, fast devsel, latency 0, IRQ 24, NUMA node 0
+	Memory at 21000000 (32-bit, non-prefetchable) [size=16M]
+	Memory at 1000000000 (64-bit, prefetchable) [size=16G]
+	Memory at 1400000000 (64-bit, prefetchable) [size=32M]
+```
 
 Proceed to the OS-specific instructions below.