Docs update and ci bumped up hugo version (#138)

.travis.yml

@@ -15,7 +15,7 @@ cache:
     - $TRAVIS_BUILD_DIR/examples/target
 
 install:
-  - curl -L https://github.com/gohugoio/hugo/releases/download/v0.40.3/hugo_0.40.3_Linux-64bit.tar.gz | tar xzvf -
+  - curl -L https://github.com/gohugoio/hugo/releases/download/v0.62.1/hugo_0.62.1_Linux-64bit.tar.gz | tar xzvf -
 
 matrix:
   include:

content/docs/errors.md

@@ -12,15 +12,12 @@ from web handlers.
 
 If a handler returns an `Error` (referring to the [general Rust trait
 `std::error::Error`][stderror]) in a `Result` that also implements the
-`ResponseError` trait, actix-web will render that error as an HTTP response.
+`ResponseError` trait, actix-web will render that error as an HTTP response with it's corresponding [`actix_web::http::StatusCode`][status_code]. Internal server error is generated by default:
-`ResponseError` has a single function called `error_response()` that returns
-`HttpResponse`:
 
 ```rust
-pub trait ResponseError: Fail {
+pub trait ResponseError {
-    fn error_response(&self) -> HttpResponse {
+    fn error_response(&self) -> HttpResponse;
-        HttpResponse::new(StatusCode::INTERNAL_SERVER_ERROR)
+    fn status_code(&self) -> StatusCode;
-    }
 }
 ```
 
@@ -55,7 +52,7 @@ Here's an example implementation for `ResponseError`:
 {{< include-example example="errors" file="main.rs" section="response-error" >}}
 
 `ResponseError` has a default implementation for `error_response()` that will
-render a *500* (internal server error), and that's what will happen when the
+render a _500_ (internal server error), and that's what will happen when the
 `index` handler executes above.
 
 Override `error_response()` to produce more useful results:
@@ -66,7 +63,7 @@ Override `error_response()` to produce more useful results:
 
 Actix-web provides a set of error helper functions that are useful for generating
 specific HTTP error codes from other errors. Here we convert `MyError`, which
-doesn't implement the `ResponseError` trait, to a *400* (bad request) using
+doesn't implement the `ResponseError` trait, to a _400_ (bad request) using
 `map_err`:
 
 {{< include-example example="errors" file="helpers.rs" section="helpers" >}}
@@ -78,7 +75,7 @@ for a full list of available error helpers.
 
 Actix-web provides automatic compatibility with the [failure] library so that
 errors deriving `fail` will be converted automatically to an actix error. Keep
-in mind that those errors will render with the default *500* status code unless you
+in mind that those errors will render with the default _500_ status code unless you
 also provide your own `error_response()` implementation for them.
 
 # Error logging
@@ -140,3 +137,4 @@ This is a basic example using `middleware::Logger`:
 [responseerror]: https://docs.rs/actix-web/2/actix_web/error/trait.ResponseError.html
 [responseerrorimpls]: https://docs.rs/actix-web/2/actix_web/error/trait.ResponseError.html#foreign-impls
 [stderror]: https://doc.rust-lang.org/std/error/trait.Error.html
+[status_code]: https://docs.rs/actix-web/2.0.0/actix_web/http/struct.StatusCode.html

content/docs/getting-started.md

@@ -20,6 +20,14 @@ cd hello-world
 Now, add `actix-web` as a dependency of your project by ensuring your `Cargo.toml`
 contains the following:
 
+```ini
+[dependencies]
+actix-web = "{{< actix-version "actix-web" >}}"
+```
+
+If you want to use the `#[actix_rt::main]` macro, you have to add `actix-rt` to your dependency.
+Now your `Cargo.toml` should look like following:
+
 ```ini
 [dependencies]
 actix-web = "{{< actix-version "actix-web" >}}"