docs: Update for template changes, typos

docs/src/tutorial/template-deep-dive/cargo-toml.md

@@ -3,11 +3,11 @@
 `Cargo.toml` is the manifest file for Rust's package manager, `cargo`. This file contains
 metadata such as name, version, and dependencies for packages, which are call "crates" in Rust.
 
-There's a bunch of metadata that the template gives us, but there are 3 key parts to discuss:
+There's a bunch of metadata that the template gives us, but there are three key parts to discuss:
 
-- [`crate-type`](#a1-crate-type)
-- [`wasm-bindgen` dependency](#a2-wasm-bindgen-dependency)
-- [`[features]` and `wee-alloc`, `console-error-panic-hook` dependencies](#a3-features-and-wee-alloc-console-error-panic-hook-dependencies)
+1. [`crate-type`](#a1-crate-type)
+2. [`wasm-bindgen` dependency](#a2-wasm-bindgen-dependency)
+3. [`[features]` and `wee_alloc`, `console_error_panic_hook` dependencies](#a3-features-and-wee_alloc-console_error_panic_hook-dependencies)
 
 <hr/>
 
@@ -15,7 +15,7 @@ There's a bunch of metadata that the template gives us, but there are 3 key part
 
 ```toml
 [lib]
-crate-type = ["cdylib"]
+crate-type = ["cdylib", "rlib"]
 ```
 
 A Rust-`wasm` crate is a bit different from a normal crate, and as a result, we need to note
@@ -33,6 +33,9 @@ as a dynamic library to be loaded from another language. In our case, we'll be c
 `.wasm` file, but this output type will create `*.so` files on Linux, `*.dylib` files on
 macOS, and `*.dll` files on Windows in non-`wasm` circumstances.
 
+`#[crate_type = "rlib"]` signifies that an intermediate "Rust library" file will be produced. 
+This allows tests to use the main crate.
+
 You can read more about linking and crate types, [here](https://doc.rust-lang.org/reference/linkage.html).
 
 ## 2. `wasm-bindgen` dependency
@@ -52,23 +55,24 @@ We'll see more about how to use this library when we discuss what has been gener
 there is no `^` or `~` symbol- it looks like we're locking to the `0.2` version. 
 However, that's not the case! In Rust, the `^` is implied.
 
-## 3. `[features]` and `wee-alloc`, `console-error-panic-hook` dependencies
+## 3. `[features]` and `wee_alloc`, `console_error_panic_hook` dependencies
 
 As part of our effort to design a template that helps people discover useful crates
-for their particular use case, this template includes 2 dependencies that can be
+for their particular use case, this template includes two dependencies that can be
 very useful for folks developing Rust-`wasm` crates: `console-error-panic-hook` and
 `wee-alloc`.
 
-Because these dependencies are useful primarily in a specifc portion of the Rust-`wasm`
+Because these dependencies are useful primarily in a specific portion of the Rust-`wasm`
 crate development workflow, we've also set up a bit of glue code that allows us to include
-them both as dependences, but allowing for them to be optionally included.
+them both as dependencies, but also allows them to be optionally included.
 
 ```toml
 [features]
-default-features = ["console_error_panic_hook", "wee_alloc"]
+default = ["console_error_panic_hook"]
 
 [dependencies]
 cfg-if = "0.1.2"
+wasm-bindgen = "0.2"
 
 # The `console_error_panic_hook` crate provides better debugging of panics by
 # logging them with `console.error`. This is great for development, but requires
@@ -79,12 +83,22 @@ console_error_panic_hook = { version = "0.1.1", optional = true }
 # `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size
 # compared to the default allocator's ~10K. It is slower than the default
 # allocator, however.
-wee_alloc = { version = "0.4.1", optional = true }
+#
+# Unfortunately, `wee_alloc` requires nightly Rust when targeting wasm for now.
+wee_alloc = { version = "0.4.2", optional = true }
 ```
 
-[`cfg-if`] allows us to check if certain features are enabled on a rust crate. We'll
-use this crate in `utils.rs` to optionally enable `console_error_panic_hook` or
-`wee_alloc`. By default, we have them enabled. To disable them, we can remove their
-entry from the `default-features` vector.
+[`cfg-if`] allows us to check if certain features are enabled on a Rust crate. We'll
+use this crate later to optionally enable `console_error_panic_hook` or
+`wee_alloc`.
+
+By default, only `console_error_panic_hook` is enabled. To disable either
+feature, we can remove its name from the `default` vector.
+
+To learn more about these features, we discuss them in-depth in the `src/lib.rs` and 
+`src/utils.rs` sections.
+
+Briefly, they include:
 
-To learn more about these features, we discuss them in depth in the `utils.rs` section.
++ **console_error_panic_hook** for logging panic messages to the developer console.
++ **wee_alloc**, an allocator optimized for small code size.