doc: additional true ups

README.md

@@ -1,6 +1,7 @@
 # Quickly Explore The Rust Toolbox
 
-- The guide to accompany this repository, is now hosted on Gitlab Pages: [https://canardleteer.github.io/quickly-explore-rs/](https://canardleteer.github.io/quickly-explore-rs/)
+- The guide to accompany this repository, is now hosted on Gitlab Pages:
+  - [https://canardleteer.github.io/quickly-explore-rs/](https://canardleteer.github.io/quickly-explore-rs/)
 
 - Assuming you have `mdbook` installed, you can view it locally via:
 

book/src/09-00-tools.md

@@ -5,8 +5,22 @@
 - `cargo install mdbook`
   - [repo](https://github.com/rust-lang/mdBook)
 
+## Use `rg` after install
+
+```shell
+rg "# Install Some Useful Tools" .
+```
+
+And it should find the Markdown source for this chapter.
+
+## Use `mdbook` after install
+
 To locally view this book:
 
 ```shell
 mdbook serve book
 ```
+
+And it would then be serving at:
+
+- [http://127.0.0.1:3000](http://127.0.0.1:3000)

book/src/10-01-cargo-add.md

@@ -2,7 +2,9 @@
 
 First, let's add the extremely useful `clap` library to our `Cargo.toml`. Start by checking out the [crate page](https://crates.io/crates/clap).
 
-I am pinning the version, to `4.4.11`, and adding 2 Features: `derive` and `env`. "Features" are important to know about, but I'm not going to cover them here. You can [read up on them](https://doc.rust-lang.org/cargo/reference/features.html).
+I am pinning the version, to `4.4.11`, and adding 2 Features: `derive` and `env`.
+
+- "Features" for crates are important to know about, but I'm not going to cover them here. You can [read up on them](https://doc.rust-lang.org/cargo/reference/features.html).
 
 ```shell
 -> cargo add [email protected] --features derive,env