Added documentation for imports and partials

Author: dlmanning

README.md

@@ -9,7 +9,7 @@ SASS plugin for [gulp](https://github.com/wearefractal/gulp).
 npm install gulp-sass
 ```
 
-#Usage
+#Basic Usage
 
 Something like this:
 
@@ -26,3 +26,42 @@ gulp.task('sass', function () {
 
 Options passed as a hash into ```sass()``` will be passed along to [```node-sass```](https://github.com/andrew/node-sass)
 
+#Imports and Partials
+
+If you want to use imports or partials templates, you'll need to pass the ```includePaths``` option along to node-sass. So if you have files like this:
+
+scss/includes/_settings.scss:
+
+```sass
+$blue: #3bbfce;
+$margin: 16px;
+```
+
+scss/style.scss:
+
+```sass
+@import "settings";
+
+.content-navigation {
+  border-color: $blue;
+  color:
+    darken($blue, 9%);
+}
+
+.border {
+  padding: $margin / 2;
+  margin: $margin / 2;
+  border-color: $blue;
+}
+```
+
+Your code should look something like this:
+
+```javascript
+gulp.task('sass', function () {
+  gulp.src('./scss/*.scss')
+    .pipe(sass({includePaths: ['scss/includes']}))
+    .pipe(gulp.dest('./css'));
+});
+```
+