Update index.ftd

Signed-off-by: Saurabh Lohiya <saurabhlohiya1234@gmail.com>

index.ftd

@@ -33,7 +33,7 @@ lang: ftd
 
 \-- fastn.dependency: <user_name>.github.io/<repo_name>
 
--- site-doc.header:
+-- site-doc.header: Next Step
 
 Now import `<repo_name>` inside `.ftd` file as shown below:
 
@@ -43,7 +43,7 @@ lang: ftd
 \-- import: <user_name>.github.io/<repo_name>
 
 
--- site-doc.header: 
+-- site-doc.header: Next Step
 
 add `<repo_name>` `types` to `ds.page` `types` attribute as shown
 below:
@@ -54,7 +54,7 @@ lang: ftd
 \-- ds.page:
 types: $<repo_name>.types
 
--- site-doc.header: 
+-- site-doc.header: Next Step
 
 Once you add `types: $<repo_name>.types` inside your `.ftd` file,
 `<repo_name>` will be added as `fastn` default typography to your
@@ -68,7 +68,7 @@ lang: ftd
 
 \-- fastn.dependency: <user_name>.github.io/<repo_name>
 
--- site-doc.header:
+-- site-doc.header: Next Step
 
 Once you add above dependency, then import `<repo_name>` inside your
 `.ftd` file:
@@ -78,7 +78,7 @@ lang: ftd
 
 \-- import: <user_name>.github.io/<repo_name>
 
--- site-doc.header:
+-- site-doc.header: Next Step
 
 Done! `<repo_name>` is now added. Lets define a `page` component:
 
@@ -125,7 +125,7 @@ children: $page.wrap
 \-- end: page
 
 
--- site-doc.header:
+-- site-doc.header: Next Step
 
 In above code snippet we defined `page` component which has `types`, `title`,
 `body` and  `wrap` attributes.
@@ -193,7 +193,7 @@ color: $inherited.colors.text
 
 -- end: cb.rendered
 
--- site-doc.header:
+-- site-doc.header: Next Step
 
 Click on download icon on above code snippet `types.ftd` file will be
 downloaded, add previously downloaded `my-ds.ftd` and `types.ftd` inside