move getting started guide pieces around, small edits (titles, nav)

src/pages/_data/navigation/footerLinks.json5

@@ -4,8 +4,7 @@
       title: "Developers",
       links: [
         { title: "Get Started", url: "/get-started/" },
-        { title: "Learn", url: "/concepts/1_the_basics/" },
-        { title: "Build", url: "/build/1_hello_world/" },
+        { title: "Core Concepts", url: "/concepts/1_the_basics/" },
         { title: "Resources", url: "/resources/" },
       ]
     },

src/pages/_data/navigation/mainNav.json5

@@ -1,6 +1,10 @@
 {
   links: [
     { title: "Get Started", url: "/get-started/", children: [
+        { title: "1. Install Holochain Development Environment", url: "/get-started/#2-installing-holochain-development-environment" },
+        { title: "2. Hello World", url: "/get-started/2-hello-world/" },
+        { title: "3. Forum App Tutorial", url: "/get-started/3-forum-app-tutorial/" },
+        { title: "4. Packaging & Distribution", url: "/get-started/4-packaging-and-distribution/" },
         { title: "Dev Tools Setup Tips", url: "/get-started/install-advanced/" },
         { title: "Setup Without Nix", url: "/get-started/install-without-nix/" },
         { title: "Distribute your App", url: "/get-started/distribute-your-app/" },
@@ -21,11 +25,6 @@
         { title: "Lifecycle Events", url: "/concepts/11_lifecycle_events/" },
       ]
     },
-    { title: "Build", url: "/build/1_hello_world/", children: [
-        { title: "Forum App Tutorial", url: "/build/2_forum_tutorial/" },
-        { title: "Packaging & Distribution", url: "/build/3_deployment/" },
-      ]
-    },
     { title: "Resources", url: "/resources/", children: [
         { title: "HDK (Rust)", url: "https://docs.rs/hdk", external: true },
         { title: "App API reference", url: "https://docs.rs/holochain_conductor_api/latest/holochain_conductor_api/enum.AppRequest.html", external: true },

src/pages/build/1_hello_world.md → src/pages/get-started/2-hello-world.md

@@ -1,8 +1,8 @@
 ---
-title: "Build on Holochain: Hello World"
+title: "Scaffold a Simple Hello World Application"
 ---
 
-In this section, we’ll use Holochain’s scaff olding tool to generate a simple “Hello, World!” application.
+In this section, we’ll use Holochain’s scaffolding tool to generate a simple “Hello, World!” application.
 
 For this tutorial, we'll be working in `~/Holochain`. Create that folder now and move into it:
 
@@ -14,10 +14,9 @@ mkdir ~/Holochain
 cd ~/Holochain
 ```
 
-## Scaffold a simple "Hello, World!" App 
+## Scaffold a simple "Hello, World!" app
 
-In this section, we'll use Holochain's scaff
-olding tool to generate a simple "Hello, World!" application.
+In this section, we'll use Holochain's scaffolding tool to generate a simple "Hello, World!" application.
 
 When getting started, seeing a simple but fully-functional app can be very helpful. You can have Holochain's scaffolding tool generate a "Hello, World!" application (but for a distributed multi-agent world) by typing the following in your command line terminal:
 
@@ -104,3 +103,9 @@ This table includes everything in the `hello-world/` folder as well as details o
 These files and folders make up the structure of a Holochain application, with the main logic defined in the zomes (in the `dnas/<dna>/zomes/` folders) and the user interface defined in the `ui/` folder. The manifest files bring all the Holochain and UI assets together, allowing the `hc` tool to bundle them into a single hApp file ready for distribution.
 
 !!!
+
+### Next up
+
+Now it's time to try scaffolding your own application. Follow the instructions in the next guide to learn how to generate back-end and UI code.
+
+[Forum app tutorial →](../3-forum-app-tutorial/){.btn-purple}