Renamed Lexdown file back to original

Author: m-messer

docs/teacher/guides/gettingstarted.md

@@ -48,7 +48,7 @@ A [student guide is here](../../student/index.md). Teachers use the 'below the l
 -   **Final answer** is self-explanatory.
 -   **Worked solutions** provides detailed, step-by-step solutions.
 
-All content below the line uses the [Lexdown](./lexdown-content-editor.md) content editor functionality. Worked solutions can be [branched](https://lambda-feedback.github.io/user-documentation/teacher/guides/good-practice/#branching), or split into [steps](https://lambda-feedback.github.io/user-documentation/teacher/guides/lexdown/#steps-in-worked-solutions). Future developments will add branching and response areas to structured tutorials.
+All content below the line uses the [Lexdown](./lexdown) content editor functionality. Worked solutions can be [branched](https://lambda-feedback.github.io/user-documentation/teacher/guides/good-practice/#branching), or split into [steps](https://lambda-feedback.github.io/user-documentation/teacher/guides/lexdown/#steps-in-worked-solutions). Future developments will add branching and response areas to structured tutorials.
 
 It is not necessary to include all three methods of help. If you only provide content for one tab, only that button will appear in the published student version.
 

docs/teacher/guides/lexdown-content-editor.md renamed to docs/teacher/guides/lexdown.md

@@ -10,7 +10,7 @@ Special attention is required when formatting $\LaTeX$ which, although it is for
 
 ## The Lexdown content editor
 
-All content in Lambda Feedback is stored as markdown (ASCII content), input/edited using our [Lexdown editor](../guides/lexdown-content-editor.md). The editor has a preview mode providing live interactive previews of content, including $\LaTeX$ via katex, and a raw markdown mode.
+All content in Lambda Feedback is stored as markdown (ASCII content), input/edited using our [Lexdown editor](../guides/lexdown). The editor has a preview mode providing live interactive previews of content, including $\LaTeX$ via katex, and a raw markdown mode.
 
 ## Web requirements: katex
 

docs/teacher/reference/latex_functionality.md

@@ -35,7 +35,7 @@ nav:
       - Guides:
           - Getting started: "teacher/guides/gettingstarted.md"
           - Editing questions: "teacher/guides/content-sets-questions.md"
-          - Lexdown content editor: "teacher/guides/lexdown-content-editor.md"
+          - Lexdown content editor: "teacher/guides/lexdown.md"
           - Exporting and importing questions: "teacher/guides/question-export-import.md"
           - Analytics: "teacher/guides/analytics.md"
           - Good practice: "teacher/guides/good-practice.md"