Typo Update profiling.md

[mdqst]

Description:

This PR fixes a minor but important typo in the Jemalloc section of the profiling documentation.

Before:

Jemalloc also provides tools for analyzing and visualizing its the allocation profiles it generates, notably jeprof.

After:

Jemalloc also provides tools for analyzing and visualizing its allocation profiles it generates, notably jeprof.

Importance of the Fix:

The typo introduces a grammatical issue that can distract readers and reduce the perceived professionalism of the documentation. While small, such errors can impact readability and comprehension, especially for non-native English speakers. Correcting this ensures the documentation maintains its clarity and quality.