add api docs guide

guides/using_the_api_docs.md

@@ -0,0 +1,30 @@
+# Using the API Docs
+
+tags: API
+
+## Introduction
+
+Every gradio interface comes with an API you can use directly. To find out how to use it, just click the `view the api` button at the bottom of the page (whether its hosted on spaces, generated using `share=True`, or running locally).
+
+![view the api button](website/src/assets/img/guides/using_the_api_docs/view-the-api-button.gif)
+
+This button opens up interface-specific API docs. This will show you the predict endpoint, payload, response, as well as sample code snippets in Python, JS and cURL.
+
+# What will the API docs tell you?
+
+Below is an (iframed) example: the API Docs of [this space](https://huggingface.co/spaces/erogol/CoquiTTS).
+
+It shows that there are 7 sections on the page
+
+* The predict **endpoint**: where to send the payload
+* The **inputs** and their types
+* The **outputs** and their types
+* The **payload**: what to send and how to structure it 
+* The **response**: what to expect to receive 
+* A live **demo** and **code snippets** in Python, JS and cURL
+* Other **methods** related to the inputs/outputs 
+
+
+<iframe src="https://hf.space/gradioiframe/erogol/CoquiTTS/api" frameBorder="5" height="725" title="Gradio app" class="container p-0 flex-grow space-iframe" allow="accelerometer; ambient-light-sensor; autoplay; battery; camera; document-domain; encrypted-media; fullscreen; geolocation; gyroscope; layout-animations; legacy-image-formats; magnetometer; microphone; midi; oversized-images; payment; picture-in-picture; publickey-credentials-get; sync-xhr; usb; vr ; wake-lock; xr-spatial-tracking" sandbox="allow-forms allow-modals allow-popups allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-downloads"></iframe>
+
+### That's all! Happy building :)

website/homepage/render_html.py

@@ -62,7 +62,7 @@ for guide in guide_files:
     guide_name = guide[:-3]
     pretty_guide_name = " ".join(
         [
-            word.capitalize().replace("Ml", "ML").replace("Gan", "GAN")
+            word.capitalize().replace("Ml", "ML").replace("Gan", "GAN").replace("Api", "API")
             for word in guide_name.split("_")
         ]
     )