Remove rltk reference from vanilla Rust project

chornsby · web-flow · commit 515e37662266 · 2020-04-21T20:25:12.000+03:00
At this point in the tutorial I don't think users will have rltk installed.
diff --git a/book/src/chapter_1.md b/book/src/chapter_1.md
@@ -75,7 +75,7 @@ These are:
 The auto-generated `main.rs` file looks like this:
 
 ```rust
-fn main() -> rltk::BError {
+fn main() {
     println!("Hello, world!");
 }
 ```

Original file line number	Diff line number	Diff line change
`@@ -75,7 +75,7 @@ These are:`
`75`	`75`	The auto-generated `main.rs` file looks like this:
`76`	`76`
`77`	`77`	```rust
`78`		`-fn main() -> rltk::BError {`
	`78`	`+fn main() {`
`79`	`79`	`println!("Hello, world!");`
`80`	`80`	`}`
`81`	`81`	```