update learning materials docs

Author: lkstrp

src/lib/components/FAQ.svelte

@@ -26,7 +26,7 @@
     },
     {
       question: "Where can I find learning materials?",
-      answer: `PyPSA offers comprehensive learning resources in the <a href="${DOCS_BASE_URL}" target="_blank" rel="noreferrer" class="hover:underline" style="color: #2993B5;">documentation</a> including tutorials and examples. You can also find a list of video lectures, workshops, and training materials for PyPSA and Energy Systems Modelling in general on the dedicated <a href="${DOCS_BASE_URL}/user-guide/resources" target="_blank" rel="noreferrer" class="hover:underline" style="color: #2993B5;">resources page</a>. Additionally, the YouTube channels of <a href="https://www.youtube.com/@pypsa-official" target="_blank" rel="noreferrer" class="hover:underline" style="color: #2993B5;">PyPSA</a> and <a href="https://www.youtube.com/@pypsameetsearth7475" target="_blank" rel="noreferrer" class="hover:underline" style="color: #2993B5;">PyPSA meets Earth</a> offer video tutorials and collect community videos in their playlist sections.`,
+      answer: `PyPSA offers comprehensive learning resources in the <a href="${DOCS_BASE_URL}" target="_blank" rel="noreferrer" class="hover:underline" style="color: #2993B5;">documentation</a> including tutorials and examples. You can also find a list of video lectures, workshops, and training materials for PyPSA and Energy Systems Modelling in general on the dedicated <a href="${DOCS_BASE_URL}/user-guide/learning-materials/" target="_blank" rel="noreferrer" class="hover:underline" style="color: #2993B5;">learning materials</a> page. Additionally, the YouTube channels of <a href="https://www.youtube.com/@pypsa-official" target="_blank" rel="noreferrer" class="hover:underline" style="color: #2993B5;">PyPSA</a> and <a href="https://www.youtube.com/@pypsameetsearth7475" target="_blank" rel="noreferrer" class="hover:underline" style="color: #2993B5;">PyPSA meets Earth</a> offer video tutorials and collect community videos in their playlist sections.`,
       value: "item-3",
     },
     {