Fixed links in readme

Author: adambcomer

README.md

@@ -1,22 +1,23 @@
 # How to Build a Simple Database
-Databases are an integral part to software development and to better understand how they work, I made my own. In this project, I built a LSM-Tree Key-Value Store based on [RocksDB](https://github.com/facebook/rocksdb) in Rust. 
 
-## Documentation
-While building this database, I wrote easy to understand articles explaining how each component works and fits into the larger project. Knowledge of database storage engines is very scattered online, and I spent several months reading papers, documentation, and code to get a basic understanding. I made this guide for my beginner self who was often lost trying to piece together how a database worked.
+Databases are an integral part to software development and to better understand how they work, I made my own. In this project, I built a LSM-Tree Key-Value Store based on [RocksDB](https://github.com/facebook/rocksdb) in Rust.
 
+## Documentation
 
-- [Build a Database Pt. 1: Motivation & Design](https://adambcomer.com/blog/simple-database/motivation-design.html)
-- [Build a Database Pt. 2: MemTable](https://adambcomer.com/blog/simple-database/memtable.html)
-- [Build a Database Pt. 3: Write Ahead Log(WAL)](https://adambcomer.com/blog/simple-database/wal.html)
-- Build a Database Pt. 4: Compaction
-- Build a Database Pt. 5: Putting it Together
-- Build a Database Pt. 6: Using the Database
+While building this database, I wrote easy to understand articles explaining how each component works and fits into the larger project. Knowledge of database storage engines is very scattered online, and I spent several months reading papers, documentation, and code to get a basic understanding. I made this guide for my beginner self who was often lost trying to piece together how a database worked.
 
+- [Build a Database Pt. 1: Motivation & Design](https://adambcomer.com/blog/simple-database/motivation-design/)
+- [Build a Database Pt. 2: MemTable](https://adambcomer.com/blog/simple-database/memtable/)
+- [Build a Database Pt. 3: Write Ahead Log(WAL)](https://adambcomer.com/blog/simple-database/wal/)
+- Build a Database Pt. 4: SSTable
+- Build a Database Pt. 5: Compaction
+- Build a Database Pt. 6: Putting it Together
+- Build a Database Pt. 7: Using the Database
 
 ## Tests
+
 Running tests is very simple with cargo.
 
 ```shell
 cargo test
 ```
-