add more prompts

app/src/content/chapters/8-appendix.mdx

@@ -51,6 +51,14 @@ Document:
 [TEXT]
 ```
 
+##### explanation
+
+```text
+Rewrite the document to provide clear scientific or logical explanations for concepts, phenomena, or processes mentioned in the text. Make implicit reasoning explicit by explaining why things work the way they do, what principles or mechanisms are at play, and how different factors relate to each other. Focus on building understanding through causal explanations rather than just describing facts. Output only the explanatory text, nothing else.
+Document:
+[TEXT]
+```
+
 ##### faq
 
 ```text
@@ -67,6 +75,14 @@ Document:
 [TEXT]
 ```
 
+##### narrative
+
+```text
+Rewrite the document as a clear narrative that emphasizes the temporal sequence and causal relationships between events or steps. Reorganize the content to show how actions, events, or situations naturally flow from one to the next, making cause-and-effect relationships explicit. If describing a process or activity, show the logical progression of steps and explain why each step follows from the previous one. Output only the narrative, nothing else.
+Document:
+[TEXT]
+```
+
 ##### table
 
 ```text