Grammar fix

'accessing data' not 'access data'

notebooks/Flexible Fortran.ipynb

@@ -319,7 +319,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "The above example demonstrates the ease by which data can be transferred between images. We could read a data file using one image, distribute chunks of the data to multiple images for processing, and then either reconstitute a single data store, or perform some cumulative operation on those chunks, such as a summation. What this ease hides, however, is the fact that accessing data in a different image means that data may have to be transferred over a network and is likely to be significantly slower than access data in the local image. Parallel programming therefore, even using Coarrays, is a careful exercise in minimising network access and idling processes, for which profiling tools such as _Intel VTune_ can help immensely."
+    "The above example demonstrates the ease by which data can be transferred between images. We could read a data file using one image, distribute chunks of the data to multiple images for processing, and then either reconstitute a single data store, or perform some cumulative operation on those chunks, such as a summation. What this ease hides, however, is the fact that accessing data in a different image means that data may have to be transferred over a network and is likely to be significantly slower than accessing data in the local image. Parallel programming therefore, even using Coarrays, is a careful exercise in minimising network access and idling processes, for which profiling tools such as _Intel VTune_ can help immensely."
    ]
   },
   {