Add link to author mention

Author: te-online

javascript3/week1/lesson-plan.md

@@ -2,7 +2,7 @@
 
 ## Lesson materials
 These are some examples of previously created materials by mentors that you can use yourself, or for inspiration.
-- [Notion Page Handout](https://dandy-birth-1b2.notion.site/HYF-Aarhus-JS-3-Week-1-c6fd6d7243454ac0b519c17829bf8761?pvs=4) (by @te-online)
+- [Notion Page Handout](https://dandy-birth-1b2.notion.site/HYF-Aarhus-JS-3-Week-1-c6fd6d7243454ac0b519c17829bf8761?pvs=4) (by [Thomas](https://github.com/te-online))
 
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