Fix grammar to improve clarity

[rust-101.git] / src / main.rs

diff --git a/src/main.rs b/src/main.rs
index 942e490e0c4ba1064900c8b73a915e2b531ba95c..2a0aa76d30fd3b2524b1a10a3630db83f92f4302 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,7 +2,7 @@
 // ===================
 // 
 // This is [Rust-101](https://www.ralfj.de/projects/rust-101/), a small tutorial for
-// the [Rust language](http://www.rust-lang.org/). It is intended to be an interactive,
+// the [Rust language](https://www.rust-lang.org/). It is intended to be an interactive,
 // hands-on course: I believe the only way to *really* learn a language is to write code
 // in it, so you should be coding during the course.
 // 
@@ -28,25 +28,30 @@
 // a garbage collector) or vice versa. Rust can run without dynamic allocation (i.e., without
 // a heap), and even without an operating system. In fact, Rust rules out more classes of bugs
 // than languages that achieve safety with a garbage collector: Besides dangling pointers and
-// double-free, Rust also prevents issues such as iterator invalidation and data races.
+// double-free, Rust also prevents issues such as iterator invalidation and data races. Finally,
+// it cleans up behind you, and deallocates resources (memory, but also file descriptors and really
+// anything) when you don't need them anymore.
 // 
 // 
 // Getting started
 // ---------------
 // 
 // You will need to have Rust installed, of course. It is available for download on
-// [the Rust website](http://www.rust-lang.org/). Make sure you get at least version 1.2
-// (at the time of writing, that's the current beta release). More detailed installation
-// instructions are provided in [the second chapter of The Book](https://doc.rust-lang.org/stable/book/installing-rust.html).
+// [the Rust website](https://www.rust-lang.org/). Make sure you get at least version 1.3.
+// More detailed installation instructions are provided in
+// [The Book](https://doc.rust-lang.org/stable/book/).
 // This will also install `cargo`, the tool responsible for building rust projects (or *crates*).
 // 
-// Next, fetch the Rust-101 source code from the [git repository](http://www.ralfj.de/git/rust-101.git)
-// (also available [on GitHub](https://github.com/RalfJung/rust-101), and as a
-// [zip archive](https://github.com/RalfJung/rust-101/archive/master.zip) in case you don't have git installed).
-// 
-// There is a workspace prepared for you in the `workspace` folder. I suggest you copy this
-// folder somewhere else. Try `cargo build` in that new folder to check that compiling your workspace succeeds.
-// (You can also execute it with `cargo run`, but you'll need to do some work before this will succeed.)
+// Next, we have to prepare a workspace for you to conduct your Rust-101 work in, so that you don't
+// have to start with an empty file. The easiest way is to
+// [download the workspace](https://www.ralfj.de/projects/rust-101/workspace.zip)
+// matching the online tutorial. Try `cargo build` in that new folder to check that compiling your
+// workspace succeeds.
+// (You can also execute it with `cargo run`, but you'll need to do some work before this does
+// anything useful.)
+//
+// Alternatively, you can build the workspace from source by fetching the
+// [git repository](https://www.ralfj.de/git/rust-101.git) and running `make workspace`.
 
 // Course Content
 // --------------
@@ -63,7 +68,7 @@
 // 
 // ### Basic Rust
 // 
-// * [Part 04: Ownership, Borrowing](part04.html)
+// * [Part 04: Ownership, Borrowing, References](part04.html)
 // * [Part 05: Clone](part05.html)
 // * [Part 06: Copy, Lifetimes](part06.html)
 // * [Part 07: Operator Overloading, Tests, Formating](part07.html)
@@ -99,8 +104,8 @@ mod part14;
 mod part15;
 mod part16;
 
-// To actually run the code of some part (after filling in the blanks, if necessary), simply edit the `main`
-// function.
+// To actually run the code of some part (after filling in the blanks, if necessary), simply edit
+// the `main` function.
 fn main() {
     part00::main();
 }
@@ -116,5 +121,7 @@ fn main() {
 // * [The Rustonomicon](https://doc.rust-lang.org/nightly/nomicon/)
 // * [Rust by Example](http://rustbyexample.com/)
 // * The [Rust Subreddit](https://www.reddit.com/r/rust/)
-// * A [collection of links](https://github.com/ctjhoa/rust-learning) to blog posts, articles, videos, etc. for learning Rust.
-// * For the IRC channel and other forums, see the "Community" section of the [Rust Documentation index](http://doc.rust-lang.org/index.html)
+// * A [collection of links](https://github.com/ctjhoa/rust-learning) to blog posts, articles,
+//   videos, etc. for learning Rust.
+// * For the IRC channel and other forums, see the "Community" section of the
+//   [Rust Documentation index](https://doc.rust-lang.org/index.html)