Add pandas library content (#9113)

* Added a description and couple of links

* Update src/data/roadmaps/machine-learning/content/[email protected]

---------

Co-authored-by: Kamran Ahmed <[email protected]>

Author: vsridhars

src/data/roadmaps/machine-learning/content/[email protected]

@@ -1,5 +1,6 @@
-# Pandas
+Pandas is a library written for the Python programming language for data manipulation and analysis. In particular, it offers data structures and operations for manipulating numerical tables and time series.
 
 Visit the following resources to learn more:
-
-- [@video@Complete Python Pandas Data Science Tutorial! (2025 Updated Edition)](https://www.youtube.com/watch?v=2uvysYbKdjM)
+- [@official@pandas - Python Data Analysis Library](https://pandas.pydata.org/)
+- [@video@Complete Python Pandas Data Science Tutorial! (2025 Updated Edition)](https://www.youtube.com/watch?v=2uvysYbKdjM)
+