docs: fix typo and broken code fences in templates

docs/components/embedders/models/google-ai.mdx

@@ -4,7 +4,7 @@ sidebarTitle: "Google AI"
 description: "Configure Google AI as an embedding provider in Mem0 using Gemini models and the GOOGLE_API_KEY variable."
 ---
 
-To use Google AI embedding models, set the `GOOGLE_API_KEY` environment variables. You can obtain the Gemini API key from [here](https://aistudio.google.com/app/apikey).
+To use Google AI embedding models, set the `GOOGLE_API_KEY` environment variable. You can obtain the Gemini API key from [here](https://aistudio.google.com/app/apikey).
 
 ### Usage
 

docs/templates/feature_guide_template.mdx

@@ -40,7 +40,7 @@ Use this when you introduce or deepen a single Mem0 capability (Graph Memory, Ad
 
 ## Markdown Skeleton
 
-```mdx
+````mdx
 ---
 title: Advanced Retrieval
 description: Increase relevance with reranking, criteria filters, and context windows.
@@ -131,7 +131,7 @@ Walk through a real request/response. Include sample payloads and highlight nota
     See advanced retrieval driving a full knowledge assistant.
   </Card>
 </CardGroup>
-```
+````
 
 Stick to this outline. Keep the “why” up front, the “how” in the middle, and the “where to go next” crystal clear at the end.
 

docs/templates/migration_guide_template.mdx

@@ -24,7 +24,7 @@ Migrations lower blood pressure. They explain what’s changing, why it matters,
 ## ✅ COPY THIS: Content Skeleton
 Paste the block below, swap placeholders, and delete optional sections only after you’ve confirmed they aren’t needed.
 
-```mdx
+````mdx
 ---
 title: [Migration title]
 description: [Why this upgrade matters]
@@ -154,7 +154,7 @@ npm install mem0ai@[version]
     href="#example-link"
   />
 </CardGroup>
-```
+````
 
 ---