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[xml/en] copy edit and fix code typo

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under well-formedness and validation, the first line of comment within code blocks should be written as text paragraph instead, otherwise anyone who simply copy-paste the code will not be able to preview the result, the original code block is now separated into three parts, each preceded by a single line of text paragraph for clarity, also the external dtd file had a typo in last commit (60a1a43) that should have been removed at the end
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Mubiin Kimura 2020-10-02 21:43:32 +00:00 committed by GitHub
parent d566d6f3c9
commit 423f47f399
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1 changed files with 9 additions and 4 deletions
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@ -100,8 +100,9 @@ This is what makes XML versatile. It is human readable too. The following docume
A XML document is *well-formed* if it is syntactically correct. However, it is possible to add more constraints to the document, using Document Type Definitions (DTDs). A document whose elements are attributes are declared in a DTD and which follows the grammar specified in that DTD is called *valid* with respect to that DTD, in addition to being well-formed.
Declaring a DTD externally:
```xml
<!-- Declaring a DTD externally: -->
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE bookstore SYSTEM "Bookstore.dtd">
<!-- Declares that bookstore is our root element and 'Bookstore.dtd' is the path
@ -114,8 +115,11 @@ A XML document is *well-formed* if it is syntactically correct. However, it is p
<price>30.00</price>
</book>
</bookstore>
```
<!-- The DTD file: -->
The DTD file (Bookstore.dtd):
```
<!ELEMENT bookstore (book+)>
<!-- The bookstore element may contain one or more child book elements. -->
<!ELEMENT book (title, price)>
@ -128,10 +132,11 @@ A XML document is *well-formed* if it is syntactically correct. However, it is p
only contain text which is read by the parser and must not contain children.
Compare with CDATA, or character data. -->
<!ELEMENT price (#PCDATA)>
]>
```
<!-- The DTD could be declared inside the XML file itself.-->
The DTD could be declared inside the XML file itself:
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE bookstore [