fix doc links

Signed-off-by: Aramis <sennyeyaramis@gmail.com>
Signed-off-by: aramissennyeydd <aramis.sennyey@doordash.com>

docs/getting-started/config/database.md

@@ -135,5 +135,5 @@ We recommend you read [Setting up authentication](./authentication.md) next.
 
 If you want to read more about the database configuration, here are some helpful links:
 
-- [Configuring Plugin Databases](../tutorials/configuring-plugin-databases.md#privileges)
+- [Configuring Plugin Databases](../../tutorials/configuring-plugin-databases.md#privileges)
 - [Read more about Knex](http://knexjs.org/), the database wrapper that we use.

docs/getting-started/configure-app-with-plugins.md

@@ -11,7 +11,7 @@ infrastructure needs - CI/CD, monitoring, auditing, and more.
 ## Adding existing plugins to your app
 
 The following steps assume that you have
-[created a Backstage app](./create-an-app.md) and want to add an existing plugin
+[created a Backstage app](./standalone-install.md) and want to add an existing plugin
 to it.
 
 We are using the
@@ -75,7 +75,7 @@ to an entity in the software catalog.
 ### Adding a plugin page to the Sidebar
 
 In a standard Backstage app created with
-[@backstage/create-app](./create-an-app.md), the sidebar is managed inside
+[@backstage/create-app](./standalone-install.md), the sidebar is managed inside
 `packages/app/src/components/Root/Root.tsx`. The file exports the entire
 `Sidebar` element of your app, which you can extend with additional entries by
 adding new `SidebarItem` elements.

docs/getting-started/homepage.md

@@ -19,7 +19,7 @@ At the end of this tutorial, you can expect:
 
 Before we begin, make sure
 
-- You have created your own standalone Backstage app using [`@backstage/create-app`](index.md#create-your-backstage-app) and not using a fork of the [backstage](https://github.com/backstage/backstage) repository.
+- You have created your own standalone Backstage app using [`@backstage/create-app`](./standalone-install.md#1-create-your-backstage-app) and not using a fork of the [backstage](https://github.com/backstage/backstage) repository.
 - You do not have an existing homepage, and by default you are redirected to Software Catalog when you open Backstage.
 
 Now, let's get started by installing the home plugin and creating a simple homepage for your Backstage app.