fix: Updates proxy concept page images (#81)

docs/concepts/what-is-the-proxy.mdx

@@ -25,15 +25,15 @@ This makes it easy to share sensitive data with a third party without needing to
 
 ### How It Works
 
+![Outbound Proxy Diagram](/img/concepts/proxy-outbound.png)
+
 Your system initiates an outbound HTTP request to the [Ephemeral Proxy](/docs/api/proxies/ephemeral-proxy)
 or a [Pre-Configured Proxy](/docs/api/proxies/pre-configured-proxies) instance hosted by Basis Theory.
 
 To include sensitive data in your request, you include token identifiers within [expressions](/docs/expressions) included in the request.
 These are patterns of the form `{{<tokenId>}}`, where `<tokenId>` is the id of a token created within your Basis Theory tenant.
 The request is transformed by evaluating each expression and substituting the resulting plaintext values within the request.
-Finally, the transformed request is delivered to the configured destination URL.
-
-![Outbound Proxy Diagram](/img/concepts/outbound-proxy.png)
+Finally, the transformed request containing sensitive data is delivered to the configured destination URL.
 
 The Proxy terminates the inbound TLS connection from your servers and initiates a new TLS connection to the destination in order to
 guarantee secure transmission of your sensitive token data.
@@ -53,6 +53,8 @@ and substitute non-sensitive token identifiers into the request payload before i
 
 ### How It Works
 
+![Inbound Proxy Diagram](/img/concepts/proxy-inbound.png)
+
 You [pre-configure](/docs/api/proxies/pre-configured-proxies) a proxy instance, which provides you a unique URL to this
 proxy that can be shared with a third party integrator. The third party can then make HTTP requests to this URL that pass
 through the proxy before being forwarded on to your system.