finsihed ch14.1 and more than halfway through ch14.2

Cargo and Cratesio.md

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+# More About Cargo and Crates.io
+
+Previously Cargo has only been used to do basic features of Cargo, like build, run, and test the code.
+
+Cargo can do so much more
+
+This chapter will go over some more advanced features like:
+- [Customize your build](./Custome%20Build%20Profiles.md) through release profiles
+- [Publish libraries](./Publishing%20libraries.md) on [crates.io](https://crates.io/)
+- Organize large projects with workspaces
+- Install binaries from [crates.io](https://crates.io/)
+- Extend Cargo using custom commands
+
+Cargo can do even more than what will be covered.
+
+You can chack [the documentation](https://doc.rust-lang.org/cargo/) for a full explanation of all its features.