Update mistral-7b.en.mdx

pages/models/mistral-7b.en.mdx

@@ -2,8 +2,8 @@
 
 import { Callout, FileTree } from 'nextra-theme-docs'
 import {Screenshot} from 'components/screenshot'
-import mistral7b1 from '../../img/mistral-7b-1.png'
-import mistral7b2 from '../../img/mistral-7b-2.png'
+import mistral7b1 from '../../img/mistral-7B-1.png'
+import mistral7b2 from '../../img/mistral-7B-2.png'
 
 
 <Callout emoji="⚠️">
@@ -171,4 +171,4 @@ If the sentence does not fall within these categories, is safe and does not need
 
 - [Mistral 7B paper](https://arxiv.org/pdf/2310.06825.pdf) (September 2023)
 - [Mistral 7B release announcement](https://mistral.ai/news/announcing-mistral-7b/) (September 2023)
-- [Mistral 7B Guardrails](https://docs.mistral.ai/usage/guardrailing)
+- [Mistral 7B Guardrails](https://docs.mistral.ai/usage/guardrailing)