diff --git a/README.md b/README.md
index 13de87c..b966e8f 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@
[](LICENSE)
[](CONTRIBUTING.md)
-
+

[](CHANGELOG.md)
@@ -32,7 +32,7 @@ This is a curation list, not a code library. Every entry links out to a tool, ch
| | Section | Resources |
| :-: | --- | :-: |
| 📝 | [Exam & Curriculum Prep](#exam--curriculum-prep) | 75 |
-| 📚 | [By Subject](#by-subject) | 154 |
+| 📚 | [By Subject](#by-subject) | 155 |
| 🗒️ | [Notes & Knowledge Management](#notes--knowledge-management) | 6 |
| 🧠 | [Flashcards & Spaced Repetition](#flashcards--spaced-repetition) | 5 |
| ⏰ | [Task, Time & Planning](#task-time--planning) | 5 |
@@ -286,6 +286,7 @@ Flagship picks per subject: mix a strong site, a channel, and a practice tool.
- **[Chemguide](https://www.chemguide.co.uk)** - Focused explanations for UK A-Level and IGCSE chemistry (free).
- **[Chemistry LibreTexts](https://chem.libretexts.org)** - Free, open chemistry textbooks and reference material (free).
+- **[Khan Academy Chemistry](https://www.khanacademy.org/science/chemistry)** - Free lessons and practice across the chemistry syllabus (free).
- **[Master Organic Chemistry](https://www.masterorganicchemistry.com)** - Clear guides and cheat sheets for organic chemistry (freemium).
- **[The Organic Chemistry Tutor](https://www.youtube.com/@TheOrganicChemistryTutor)** - Step-by-step worked problems across chemistry and beyond (freemium).