Fix broken links in the Forms docs v15

Author: eshanrnh

15/umbraco-forms/developer/extending/adding-a-fieldtype.md

@@ -123,7 +123,7 @@ This will be rendered when the default theme is used.
 
 If working with Umbraco 9 or earlier versions, you'll find the `Views\Partials\Forms\Themes\default\` folder on disk and can create the files there.
 
-For Umbraco 10 and above, we've moved to [distributing the theme as part of a Razor Class Library](../../upgrading/version-specific/#views-and-client-side-files) so the folder won't exist. However, you can create it for your custom field type. If you would like to reference the partial views of the default theme, you can download them as mentioned in the [Themes](../themes.md) article.
+For Umbraco 10 and above, we've moved to distributing the theme as part of a Razor Class Library so the folder won't exist. However, you can create it for your custom field type. If you would like to reference the partial views of the default theme, you can download them as mentioned in the [Themes](../themes.md) article.
 
 ### Read-only partial view
 

15/umbraco-forms/editor/defining-and-attaching-prevaluesources/README.md

@@ -16,7 +16,7 @@ To set a prevalue source:
 4. The **Choose prevalue source type** pane opens in the right-side of the editor.
 5. Select the type of prevalue source. For more information on the different default types, see the [Overview of the Prevalue Source Types](prevalue-source-types.md) article.
 
-    ![Choose type](images/choosetype-v14.png.png)
+    ![Choose type](images/choosetype-v14.png)
 
 ### Configuring the Prevalue Source
 

15/umbraco-forms/release-notes.md

@@ -9,7 +9,7 @@ In this section, we have summarized the changes to Umbraco Forms released in eac
 If there are any breaking changes or other issues to be aware of when upgrading they are also noted here.
 
 {% hint style="info" %}
-If you are upgrading to a new major version, you can find information about the breaking changes in the [Version Specific Upgrade Notes](upgrading/version-specific/) article.
+If you are upgrading to a new major version, you can find information about the breaking changes in the [Version Specific Upgrade Notes](upgrading/version-specific.md) article.
 {% endhint %}
 
 ## Release history
@@ -122,7 +122,7 @@ Other bug fixes included in the release:
 ### [15.0.0-rc1](https://github.com/umbraco/Umbraco.Forms.Issues/issues?q=is%3Aissue+is%3Aclosed+label%3Arelease%2F15.0.0) (October 8th 2024)
 
 * Compatibility with Umbraco 15.0.0-rc1
-  * See full details of breaking changes under the [Version-specific Upgrade Guide](upgrading/version-specific/).
+  * See full details of breaking changes under the [Version-specific Upgrade Guide](upgrading/version-specific.md).
 * Made retrieval of prevalue source values and execution of record exports asynchronous [#1285](https://github.com/umbraco/Umbraco.Forms.Issues/issues/1285).
 * Preview of features due in 13.3 and 14.2:
   * Option to display paging details for multi-page forms.