Update recipes_source/recipes/tuning_guide.py

Co-authored-by: Svetlana Karslioglu <svekars@meta.com>

Author: orion160

recipes_source/recipes/tuning_guide.py

@@ -343,7 +343,7 @@ def gelu(x):
 # Use CUDA Graphs
 # ~~~~~~~~~~~~~~~~~~~~~~~
 # At the time of using a GPU, work first must be launched from the CPU and
-# on some cases the context switch between CPU and GPU can lead to bad resource
+# in some cases the context switch between CPU and GPU can lead to bad resource
 # utilization. CUDA graphs are a way to keep computation within the GPU without
 # paying the extra cost of kernel launches and host synchronization.