docs: Update prompt caching description for Gemini models in release notes (#155)

Author: hannesrudolph

docs/update-notes/v3.14.2.md

@@ -4,7 +4,7 @@ This release introduces prompt caching for Gemini, user control over caching for
 
 ## Gemini 2.5 Caching is HERE!
 
-*   **Prompt Caching for Gemini 2.5 Models:** Prompt caching is now available for supported Google Gemini 2.5 models when using the [Requesty](/providers/requesty), [Google Gemini](/providers/gemini), or [OpenRouter](/providers/openrouter) providers.
+*   **Prompt Caching for Gemini Models:** Prompt caching is now available for the `Gemini 1.5 Flash`, `Gemini 2.0 Flash`, and `Gemini 2.5 Pro Preview` models when using the [Requesty](/providers/requesty), [Google Gemini](/providers/gemini), or [OpenRouter](/providers/openrouter) providers (Vertex provider and `Gemini 2.5 Flash Preview` caching coming soon!)
 *   **Manual Caching Toggle (Google Gemini & OpenRouter Only):**
     *   For the **[Google Gemini](/providers/gemini)** and **[OpenRouter](/providers/openrouter)** providers specifically, a new checkbox allows you to manually enable prompt caching for supported Gemini 2.5 models.
         <img src="/img/v3.14.2/v3.14.2.png" alt="Prompt Caching Checkbox in Provider Settings" width="600" />

docs/update-notes/v3.14.md

@@ -2,7 +2,7 @@
 
 ## Gemini 2.5 Caching is HERE!
 
-*   **Prompt Caching for Gemini 2.5 Models:** Prompt caching is now available for supported Google Gemini 2.5 models when using the [Requesty](/providers/requesty), [Google Gemini](/providers/gemini), or [OpenRouter](/providers/openrouter) providers (Vertex coming soon!)
+*   **Prompt Caching for Gemini Models:** Prompt caching is now available for the `Gemini 1.5 Flash`, `Gemini 2.0 Flash`, and `Gemini 2.5 Pro Preview` models when using the [Requesty](/providers/requesty), [Google Gemini](/providers/gemini), or [OpenRouter](/providers/openrouter) providers (Vertex provider and `Gemini 2.5 Flash Preview` caching coming soon!)
 *   **Manual Caching Toggle (Google Gemini & OpenRouter Only):**
     *   For the **[Google Gemini](/providers/gemini)** and **[OpenRouter](/providers/openrouter)** providers specifically, a new checkbox allows you to manually enable prompt caching for supported Gemini 2.5 models.
         <img src="/img/v3.14.2/v3.14.2.png" alt="Prompt Caching Checkbox in Provider Settings" width="600" />