Fix GDS link in Jupyter notebook (#131)

- Update Jupyter notebook to include the correct GDS link -- <https://developer.nvidia.com/gpudirect-storage>

Authors:
  - Gigon Bae (https://github.com/gigony)

Approvers:
  - Benjamin Zaitlen (https://github.com/quasiben)
  - https://github.com/jakirkham

URL: #131

README.md

@@ -30,7 +30,7 @@
 
 ### Notebooks
 
-Please check out our [Welcome](notebooks/Welcome.ipynb) notebook ([NBViewer](https://nbviewer.jupyter.org/github/rapidsai/cucim/blob/branch-21.06/notebooks/Welcome.ipynb))
+Please check out our [Welcome](notebooks/Welcome.ipynb) notebook ([NBViewer](https://nbviewer.jupyter.org/github/rapidsai/cucim/blob/branch-21.12/notebooks/Welcome.ipynb))
 
 #### Downloading sample images
 

notebooks/Accessing_File_with_GDS.ipynb

@@ -13,7 +13,10 @@
    "source": [
     "## Prerequisite\n",
     "\n",
-    "[NVIDIA® GPUDirect® Storage (GDS)](https://docs.nvidia.com/gpudirect-storage/) needs to be installed to use GDS feature. File access APIs would still work without GDS but you won't see the speed up. \\\n",
+    "\n",
+    "[NVIDIA® GPUDirect® Storage (GDS)](https://developer.nvidia.com/gpudirect-storage) needs to be installed to use GDS feature (Since CUDA 11.4, GDS has been available as a GA release)\n",
+    "\n",
+    ". File access APIs would still work without GDS but you won't see the speed up. \\\n",
     "Please follow the [release note](https://docs.nvidia.com/gpudirect-storage/release-notes/index.html) or the [installation guide](https://docs.nvidia.com/gpudirect-storage/troubleshooting-guide/index.html#abstract) to install GDS in your host system.\n",
     "- Note:: During the GDS installation, you would need MOFED (Mellanox OpenFabrics Enterprise Distribution) installed. MOFED is available at https://www.mellanox.com/products/infiniband-drivers/linux/mlnx_ofed.\n",
     "\n",
@@ -487,7 +490,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.8"
+   "version": "3.8.10"
   }
  },
  "nbformat": 4,