fix format error in tutorial (#226)

docs/sphinx_doc/en/source/tutorial/203-parser.md

@@ -51,13 +51,12 @@ The main functions of the parser module include:
 
 1. Provide "format instruction", that is, remind LLM where to generate what output, for example
 
-> You should generate python code in a fenced code block as follows
->
-> \```python
->
-> {your_python_code}
->
-> \```
+````
+You should generate python code in a fenced code block as follows
+```python
+{your_python_code}
+```
+````
 
 2. Provide a parse function, which directly parses the text generated by LLM into the target data format,
 
@@ -82,9 +81,7 @@ In the following sections, we will introduce the usage of these parsers based on
 
 ### String Type
 
-<details>
-
-<summary id="markdowncodeblockparser"> MarkdownCodeBlockParser </summary>
+#### MarkdownCodeBlockParser
 
 ##### Initialization
 
@@ -93,34 +90,32 @@ In the following sections, we will introduce the usage of these parsers based on
     ```python
     from agentscope.parsers import MarkdownCodeBlockParser
 
-    parser = MarkdownCodeBlockParser(language_name="python")
+    parser = MarkdownCodeBlockParser(language_name="python", content_hint="your python code")
     ```
 
 ##### Format Instruction Template
 
 - `MarkdownCodeBlockParser` provides the following format instruction template. When the user calls the `format_instruction` attribute, `{language_name}` will be replaced with the string entered at initialization:
 
-    > You should generate {language_name} code in a {language_name} fenced code block as follows:
-    >
-    > \```{language_name}
-    >
-    > ${your_{language_name}_code}
-    >
-    > \```
+  ````
+  You should generate {language_name} code in a {language_name} fenced code block as follows:
+  ```{language_name}
+  {content_hint}
+  ```
+  ````
 
 - For the above initialization with `language_name` as `"python"`, when the `format_instruction` attribute is called, the following string will be returned:
 
-    ```python
-    print(parser.format_instruction)
-    ```
+  ```python
+  print(parser.format_instruction)
+  ```
 
-    > You should generate python code in a python fenced code block as follows
-    >
-    > \```python
-    >
-    > ${your_python_code}
-    >
-    > \```
+  ````
+  You should generate python code in a python fenced code block as follows
+  ```python
+  your python code
+  ```
+  ````
 
 ##### Parse Function
 
@@ -140,9 +135,9 @@ In the following sections, we will introduce the usage of these parsers based on
     print(res.parsed)
     ````
 
-    > print("hello world!")
-
-</details>
+    ```
+    print("hello world!")
+    ```
 
 ### Dictionary Type
 
@@ -259,18 +254,16 @@ In AgentScope, we achieve post-processing by calling the `to_content`, `to_memor
 >     print(parser.to_memory(example_dict))    # {"thought": "abc", "speak": "def"}
 >     print(parser.to_metadata(example_dict))  # None
 >   ```
->   > def
->   >
->   > {"thought": "abc", "speak": "def"}
->   >
->   > None
+>   ```
+>   def
+>   {"thought": "abc", "speak": "def"}
+>   None
+>   ```
 
 
 Next we will introduce two parsers for dictionary type.
 
-<details>
-
-<summary id="markdownjsondictparser"> MarkdownJsonDictParser </summary>
+#### MarkdownJsonDictParser
 
 ##### Initialization & Format Instruction Template
 
@@ -300,19 +293,14 @@ This parameter can be a string or a dictionary. For dictionary, it will be autom
 
     - The corresponding `instruction_format` attribute
 
-  > You should respond a json object in a json fenced code block as follows:
-  >
-  > \```json
-  >
-  > {content_hint}
-  >
-  > \```
-
-</details>
-
-<details>
+  ````
+  You should respond a json object in a json fenced code block as follows:
+  ```json
+  {content_hint}
+  ```
+  ````
 
-<summary id="multitaggedcontentparser"> MultiTaggedContentParser </summary>
+#### MultiTaggedContentParser
 
 `MultiTaggedContentParser` asks LLM to generate specific content within multiple tag pairs. The content from different tag pairs will be parsed into a single Python dictionary. Its usage is similar to `MarkdownJsonDictParser`, but the initialization method is different, and it is more suitable for weak LLMs or complex return content.
 
@@ -352,13 +340,12 @@ parser = MultiTaggedContentParser(
 print(parser.format_instruction)
 ```
 
-> Respond with specific tags as outlined below, and the content between [FINISH_DISCUSSION] and [/FINISH_DISCUSSION] MUST be a JSON object:
->
-> [THOUGHT]what you thought[/THOUGHT]
->
-> [SPEAK]what you speak[/SPEAK]
->
-> [FINISH_DISCUSSION]true/false, whether the discussion is finished[/FINISH_DISCUSSION]
+```
+Respond with specific tags as outlined below, and the content between [FINISH_DISCUSSION] and [/FINISH_DISCUSSION] MUST be a JSON object:
+[THOUGHT]what you thought[/THOUGHT]
+[SPEAK]what you speak[/SPEAK]
+[FINISH_DISCUSSION]true/false, whether the discussion is finished[/FINISH_DISCUSSION]
+```
 
 ##### Parse Function
 
@@ -378,23 +365,17 @@ res_dict = parser.parse(
 print(res_dict)
 ```
 
-> {
->
->    "thought": "The others didn't realize I was a werewolf. I should end the discussion soon.",
->
->    "speak": "I agree with you.",
->
->    "finish_discussion": true
->
-> }
-
-</details>
+```
+{
+  "thought": "The others didn't realize I was a werewolf. I should end the discussion soon.",
+  "speak": "I agree with you.",
+  "finish_discussion": true
+}
+```
 
 ### JSON / Python Object Type
 
-<details>
-
-<summary id="markdownjsonobjectparser"> MarkdownJsonObjectParser </summary>
+#### MarkdownJsonObjectParser
 
 `MarkdownJsonObjectParser` also uses the \```json and \``` tags in Markdown, but does not limit the content type. It can be a list, dictionary, number, string, etc., which can be parsed into a Python object via `json.loads`.
 
@@ -410,13 +391,12 @@ parser = MarkdownJsonObjectParser(
 print(parser.format_instruction)
 ```
 
-> You should respond a json object in a json fenced code block as follows:
->
-> \```json
->
-> {a list of numbers}
->
-> \```
+````
+You should respond a json object in a json fenced code block as follows:
+```json
+{a list of numbers}
+```
+````
 
 ##### Parse Function
 
@@ -433,11 +413,11 @@ res = parser.parse(
 print(type(res))
 print(res)
 ````
-> <class 'list'>
->
-> [1, 2, 3, 4, 5]
 
-</details>
+```
+<class 'list'>
+[1, 2, 3, 4, 5]
+```
 
 ## Typical Use Cases