docs(developer): Apps SDK link (#265)

Author: andrii-bodnar

src/content/docs/developer/crowdin-apps/about-crowdin-apps.mdx

@@ -68,7 +68,7 @@ The next step would be to implement the app functionality according to the app d
 </ReadMore>
 
 <Aside type="tip" title="Interested in developing Crowdin Apps?">
-  [Contact Us](https://crowdin.com/contacts) to get exclusive access to the Crowdin Apps SDK, which allows you to create apps in just a few lines of code.
+  Check out our [Crowdin Apps SDK](https://crowdin.github.io/app-project-module/) to create apps in just a few lines of code.
 </Aside>
 
 ## Using Crowdin APIs in Crowdin Apps

src/content/docs/developer/crowdin-apps/app-descriptor.mdx

@@ -12,7 +12,7 @@ The app descriptor is one of the essential building blocks of Crowdin apps. The
 It describes how the application will work, what resources will be used, etc.
 
 <Aside type="tip" title="Interested in developing Crowdin Apps?">
-  [Contact Us](https://crowdin.com/contacts) to get exclusive access to the Crowdin Apps SDK, which allows you to create apps in just a few lines of code.
+  Check out our [Crowdin Apps SDK](https://crowdin.github.io/app-project-module/) to create apps in just a few lines of code.
 </Aside>
 
 ## App Descriptor Structure

src/content/docs/developer/crowdin-apps/quick-start.mdx

@@ -38,7 +38,7 @@ At this point, you have a working app with the following structure:
 Now the app is ready for deployment on Heroku. As you may notice in the manifest.json, the app in its current state contains only the project-menu module and doesn't require authorization, i.e., the app won't have access to the API.
 
 <Aside type="tip" title="Interested in developing Crowdin Apps?">
-  [Contact Us](https://crowdin.com/contacts) to get exclusive access to the Crowdin Apps SDK, which allows you to create apps in just a few lines of code.
+  Check out our [Crowdin Apps SDK](https://crowdin.github.io/app-project-module/) to create apps in just a few lines of code.
 </Aside>
 
 ## Deploying Crowdin App