feat: feedback, and add mpdf gen

dexes/literature.bib

@@ -304,6 +304,14 @@
   note         = {Zugriff: Januar 2023}
 }
 
+@misc{bib:mpdf,
+  author       = {{Mpdf Contributors}},
+  howpublished = "\url{https://mpdf.github.io/}",
+  title        = {{mPDF}},
+  year         = {2023},
+  note         = {Zugriff: März 2023}
+}
+
 @misc{bib:typo3-docs-managing-extensions,
   author       = {{TYPO3 Contributors}},
   howpublished = "\url{https://docs.typo3.org/m/typo3/tutorial-getting-started/main/en-us/Extensions/Management.html}",
@@ -312,10 +320,10 @@
   note         = {Zugriff: Februar 2023}
 }
 
-@misc{bib:typo3-docs-concepts,
+@misc{bib:typo3-docs-getting-started,
   author       = {{TYPO3 Contributors}},
-  howpublished = "\url{https://docs.typo3.org/m/typo3/tutorial-getting-started/main/en-us/Concepts}",
-  title        = {{TYPO3 Concepts}},
+  howpublished = "\url{https://docs.typo3.org/m/typo3/tutorial-getting-started/11.5/en-us/Index.html}",
+  title        = {{Getting started}},
   year         = {2023},
   note         = {Zugriff: Februar 2023}
 }