doc: no longer requires `extern crate sailfish_macros`

README.md

@@ -30,7 +30,6 @@ Dependencies:
 ```toml
 [dependencies]
 sailfish = "0.3.0"
-sailfish-macros = "0.3.0"
 ```
 
 Template file (templates/hello.stpl):
@@ -48,9 +47,6 @@ Template file (templates/hello.stpl):
 Code:
 
 ```rust
-#[macro_use]
-extern crate sailfish_macros;  // enable derive macro
-
 use sailfish::TemplateOnce;
 
 #[derive(TemplateOnce)]

docs/en/docs/getting-started.md

@@ -29,10 +29,7 @@ templates/
 Import the sailfish crates:
 
 ```rust
-#[macro_use]
-extern crate sailfish_macros;  // enable derive macros
-
-use sailfish::TemplateOnce;  // import `TemplateOnce` trait
+use sailfish::TemplateOnce;
 ```
 
 Define the template struct to be rendered:

docs/en/docs/installation.md

@@ -5,7 +5,6 @@ In order to use sailfish templates, you have add two dependencies in your `Cargo
 ```toml
 [dependencies]
 sailfish = "0.3.0"
-sailfish-macros = "0.3.0"
 ```
 
 `sailfish` crate contains runtime for rendering contents, and `sailfish-macros` serves you derive macros to compile and import the template files.