Langflow and VectorShift tutorials: simplify prerequisites (#536)

Author: Paul-Cornell

examplecode/tools/langflow.mdx

@@ -14,14 +14,17 @@ in real time with a PDF document that is processed by Unstructured and has its p
 ## Prerequisites
 
 import AstraDBShared from '/snippets/general-shared-text/astradb.mdx';
+import GetStartedSimpleAPIOnly from '/snippets/general-shared-text/get-started-simple-api-only.mdx';
 
 <AstraDBShared />
 
 Also:
 
 - [Sign up for an OpenAI account](https://platform.openai.com/signup), and [get your OpenAI API key](https://help.openai.com/en/articles/4936850-where-do-i-find-my-openai-api-key).
 - [Sign up for a free Langflow account](https://astra.datastax.com/signup?type=langflow).
-- [Get your Unstructured Partition Endpoint key](/api-reference/partition/overview).
+- Get your Unstructured account and Unstructured API key:
+
+  <GetStartedSimpleAPIOnly />
 
 ## Create and run the demonstration project
 

examplecode/tools/vectorshift.mdx

@@ -24,14 +24,17 @@ allowfullscreen
 ></iframe>
 
 import PineconeShared from '/snippets/general-shared-text/pinecone.mdx';
+import GetStartedSimpleUIAPI from '/snippets/general-shared-text/get-started-simple-ui-api.mdx';
 
 <PineconeShared />
 
 Also:
 
 - [Sign up for an OpenAI account](https://platform.openai.com/signup), and [get your OpenAI API key](https://help.openai.com/en/articles/4936850-where-do-i-find-my-openai-api-key).
 - [Sign up for a VectorShift Starter account](https://app.vectorshift.ai/api/signup).
-- [Sign up for an Unstructured account through the For Developers page](/ui/quickstart).
+- Sign up for an Unstructured account:
+ 
+  <GetStartedSimpleUIAPI />
 
 ## Create and run the demonstration project