Add images to API reference authentication for getting API keys and notes on crypto

docs/api-reference/endpoints/secrets/create.mdx

@@ -2,3 +2,10 @@
 title: "Create"
 openapi: "POST /api/v2/secrets/"
 ---
+
+<Tip>
+  Using this route requires understanding Infisical's system and cryptography.
+  It may be helpful to read through the
+  [introduction](/api-reference/overview/introduction) and [guide for creating
+  secrets](/api-reference/overview/examples/create-secrets).
+</Tip>

docs/api-reference/endpoints/secrets/read.mdx

@@ -2,3 +2,10 @@
 title: "Retrieve"
 openapi: "GET /api/v2/secrets/"
 ---
+
+<Tip>
+  Using this route requires understanding Infisical's system and cryptography.
+  It may be helpful to read through the
+  [introduction](/api-reference/overview/introduction) and [guide for retrieving
+  secrets](/api-reference/overview/examples/retrieve-secrets).
+</Tip>

docs/api-reference/endpoints/secrets/update.mdx

@@ -2,3 +2,10 @@
 title: "Update"
 openapi: "PATCH /api/v2/secrets/"
 ---
+
+<Tip>
+  Using this route requires understanding Infisical's system and cryptography.
+  It may be helpful to read through the
+  [introduction](/api-reference/overview/introduction) and [guide for updating
+  secrets](/api-reference/overview/examples/update-secrets).
+</Tip>