fix lang toc links

Author: PatrickFarley

articles/ai-services/language-service/toc.yml

@@ -31,16 +31,16 @@ items:
     - name: Responsible use of AI
       items:
       - name: Transparency note for custom text classification
-        href: ../../ai-foundry/responsible-ai/language-service/ctc-transparency-note.md
+        href: ../../ai-foundry/responsible-ai/language-service/custom-text-classification-transparency-note.md
         displayName: Transparency note for Custom classification, Custom classification transparency, Responsible AI, Responsible use of AI
       - name: Integration and responsible use
-        href: ../../ai-foundry/responsible-ai/language-service/ctc-guidance-integration-responsible-use.md
+        href: ../../ai-foundry/responsible-ai/language-service/custom-text-classification-guidance-integration-responsible-use.md
         displayName: Responsible deployment, Responsible use, Responsible integration, AI deployment, AI use
       - name: Characteristics and limitations
-        href: ../../ai-foundry/responsible-ai/language-service/ctc-characteristics-and-limitations.md
+        href: ../../ai-foundry/responsible-ai/language-service/custom-text-classification-characteristics-and-limitations.md
         displayName: Custom classification characteristics, Custom classification limitations
       - name: Data, privacy, and security
-        href: ../../ai-foundry/responsible-ai/language-service/ctc-data-privacy-security.md
+        href: ../../ai-foundry/responsible-ai/language-service/custom-text-classification-data-privacy-security.md
         displayName: Data privacy, logging, data retention
     - name: How-to guides
       items: