Sylvia tutorial contract creation review fixes

Author: jawoznia

src/pages/tutorial/setup-environment.mdx

@@ -94,7 +94,7 @@ All contracts (1) passed checks!
 
 ## Macro expansion
 
-In VSCode you can hower over a macro like [`#[contract]`](../sylvia/macros/contract), do `shift+p`
+In VSCode you can hover over a macro like [`#[contract]`](../sylvia/macros/contract), do `shift+p`
 and then type: `rust analyzer: Expand macro recursively`. This will open a window with a fully
 expanded macro, which you can browse. In Vim you can consider installing the
 [rustaceanvim](https://github.com/mrcjkb/rustaceanvim) plugin. You can also use `cargo expand` tool

src/pages/tutorial/sylvia-contract.mdx

@@ -1,3 +1,3 @@
-# Sylvia contract writting tutorial
+# Sylvia contract writing tutorial
 
 This section is a step-by-step guide on how to write a Sylvia contract.

src/pages/tutorial/sylvia-contract/contract-creation.mdx

@@ -54,14 +54,14 @@ assembly binary. The downside of this is that such a library cannot be used as a
 other Rust crates - for now, it is not needed, but later we will show how to approach reusing
 contracts as dependencies.
 
-Additionally, we added some core dependencies for smart contracts:
+Additionally, we added a single dependency - [sylvia](https://docs.rs/sylvia/latest/sylvia/). This
+is the only dependency you need to start since [sylvia](https://docs.rs/sylvia/latest/sylvia/)
+reexports all the necessary crates for CosmWasm smart contracts. The most important reexported
+crates are:
 
 - [cosmwasm-std](https://docs.rs/cosmwasm-std/latest/cosmwasm_std/) - Crate that is a standard
   library for smart contracts. It provides essential utilities for communication with the outside
   world, helper functions, and types. Every smart contract we will build will use this dependency.
-- [sylvia](https://docs.rs/sylvia/latest/sylvia/) - Crate, we will learn in this book. It provides
-  us with three procedural macros: `entry_points`, `contract` and `interface`. I will expand on them
-  later in the book.
 - [schemars](https://docs.rs/schemars/latest/schemars/index.html) - Crate used to create JSON schema
   documents for our contracts. It is automatically derived on types generated by ^sylvia and will be
   later used to provide concise API for blockchain users, who might not be Rust developers.