del: add page (#1963)

pages/windows/del.md

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+# del
+
+> Delete one or more files.
+
+- Delete one or more space-separated files or patterns:
+
+`del {{file_pattern}}`
+
+- Prompt for confirmation before deleting each file:
+
+`del {{file_pattern}} /p`
+
+- Force the deletion of read-only files:
+
+`del {{file_pattern}} /f`
+
+- Recursively delete file(s) from all subdirectories:
+
+`del {{file_pattern}} /s`
+
+- Do not prompt when deleting files based on a global wildcard:
+
+`del {{file_pattern}} /q`
+
+- Display the help and list available attributes:
+
+`del /?`
+
+- Delete files based on specified attributes:
+
+`del {{file_pattern}} /a {{attribute}}`