Fix some typos and spelling mistakes in Data Locality.

and bring you entirely new one -> and bring you  **an** entirely new one
similiar -> similar
the CPU can pull data from this much faster than it can main memory -> the CPU can pull data from this much faster than it can **from** main memory
because needs data -> because **it** needs data
sychronization -> synchronization
there are profilers out that there report it -> there are profilers out **there that** report it
darkess -> darkness

This fixes issue #52.