separating walkthroughs

docs/guide/walkthrough-v2/goal.md

@@ -2,6 +2,10 @@
 sidebar_position: 1
 ---
 
+::warning
+This is the v2 guide. Go to the v3 guide!
+::
+
 # Walkthrough
 
 This walkthrough will be written in [TypeScript](https://www.typescriptlang.org/) but will have JavaScript snippets throughout. 

docs/guide/walkthrough-v3/transition.md

@@ -0,0 +1,38 @@
+---
+sidebar_position: 1
+---
+
+# Transitioning from v2 to v3
+
+
+- Sern.makeDependencies -> makeDependencies
+    - it is asynchronous and top level function now. Make sure to await it before initing for proper synchronization.
+
+
+```diff
+- Sern.makeDependencies({ build: () => {} })
++ await makeDependencies({ build: () => {} })
+```
+Also, v3 comes with the new Service api. To make sure to enable intellisense
+
+include a dependencies.d.ts file into compilation.
+```ts 
+/**
+ * This file serves as intellisense for sern projects.
+ * Types are declared here for dependencies to function properly
+ * Service(s) api rely on this file to provide a better developer experience.
+ */
+
+import { SernEmitter, Logging, CoreModuleStore, ModuleManager, ErrorHandling, CoreDependencies, Singleton } from '@sern/handler'
+import { Client } from 'discord.js'
+
+declare global {
+   interface Dependencies extends CoreDependencies {
+        '@sern/client': Singleton<Client>
+   }
+}
+
+
+export {}
+
+```