doc($route): fix $route example and couple of typos

Rewrite $route example a bit, as it required $location and $route services
to be eager published in the root scope.

Fix small typos in formatter and ng:options docs.

docs/examples/book.html

@@ -0,0 +1,2 @@
+controller: {{name}}<br />
+Book Id: {{params.bookId}}<br />

docs/examples/chapter.html

@@ -0,0 +1,3 @@
+controller: {{name}}<br />
+Book Id: {{prams.bookId}}<br />
+Chapter Id: {{params.chapterId}}