[Fix][Doc] Fix LocalFile doc (#7887)

Continue to optimize the document about filtering files and add some examples
[(#7887)](#7887)

Author: YOMO-Lee

docs/en/connector-v2/source/LocalFile.md

@@ -256,10 +256,70 @@ Filter pattern, which used for filtering files.
 
 The filtering format is similar to wildcard matching file names in Linux.
 
+| Wildcard     | Meaning                                                                                                                        | Example                                                                                                                                      |
+|--------------|--------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------|
+| *            | Match 0 or more characters                                                                                                     | f* &emsp;&ensp;&emsp; Any file starting with f<br/>b*.txt &emsp; Any file starting with b, any character in the middle, and ending with. txt |
+| []           | Match a single character in parentheses                                                                                        | [abc]* &emsp; A file that starts with any one of the characters a, b, or c                                                                   |
+| ?            | Match any single character                                                                                                     | f?.txt &emsp; Any file starting with 'f' followed by a character and ending with '. txt'                                                     |
+| [!]          | Match any single character not in parentheses                                                                                  | [!abc]* &emsp; Any file that does not start with abc                                                                                         |
+| [a-z]        | Match any single character from a to z                                                                                         | [a-z]* &emsp; Any file starting with a to z                                                                                                  |
+| {a,b,c}/a..z | When separated by commas, it represents individual characters<br/>When separated by two dots, represents continuous characters | {a,b,c}* &emsp; Files starting with any character from abc<br/>{a..Z}* &emsp;&ensp; Files starting with any character from a to z            |
+
 However, it should be noted that unlike Linux wildcard characters, when encountering file suffixes, the middle dot cannot be omitted.
 
 For example, `abc20241022.csv`, the normal Linux wildcard `abc*` is sufficient, but here we need to use `abc*.*` , Pay attention to a point in the middle.
 
+File Structure Example:
+```
+report.txt
+notes.txt
+input.csv
+abch20241022.csv
+abcw20241022.csv
+abcx20241022.csv
+abcq20241022.csv
+abcg20241022.csv
+abcv20241022.csv
+abcb20241022.csv
+old_data.csv
+logo.png
+script.sh
+helpers.sh
+```
+Matching Rules Example:
+
+**Example 1**: *Match all .txt files*，Regular Expression:
+```
+*.txt
+```
+The result of this example matching is:
+```
+report.txt
+notes.txt
+```
+**Example 2**: *Match all Any file starting with abc*，Regular Expression:
+```
+abc*.csv
+```
+The result of this example matching is:
+```
+abch20241022.csv
+abcw20241022.csv
+abcx20241022.csv
+abcq20241022.csv
+abcg20241022.csv
+abcv20241022.csv
+abcb20241022.csv
+```
+**Example 3**: *Match all Any file starting with abc，And the fourth character is either x or g*, the Regular Expression:
+```
+abc[x,g]*.csv
+```
+The result of this example matching is:
+```
+abcx20241022.csv
+abcg20241022.csv
+```
 ### compress_codec [string]
 
 The compress codec of files and the details that supported as the following shown: