Make CMU 15-445/645 the recommendation for learning databases (#6)

Author: r0hitm

docs/computer-science/applications/databases/index.md

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 # Databases
-*Timeline: 60 hours*
+
+## Recommendation
+- [Database Systems CMU 15-445/645 — Fall 2024](https://15445.courses.cs.cmu.edu/fall2024/)
+
+
+## Extras
+- [The Red Book](http://www.redbook.io/): collection of papers compiled and edited by Peter Bailis, Joe Hellerstein and Michael Stonebraker, a good progression after CMU.
+
+
+## Archive
+> Theses were the previous recommendation for learning databases. Listed here for the time being.
 
 These courses will give the student a basic understanding of databases, specifically with SQL:
 - [Relational Databases & SQL](https://www.edx.org/learn/relational-databases/stanford-university-databases-relational-databases-and-sql), 20 hrs