windows/*.md: make placeholders more compatible with CLIP ones (#9872)

* Make placeholders more compatible with CLIP ones

* Update pages/windows/doskey.md

Co-authored-by: Jack Lin <blueskyson1401@gmail.com>

* Update pages/windows/doskey.md

Co-authored-by: Jack Lin <blueskyson1401@gmail.com>

---------

Co-authored-by: Jack Lin <blueskyson1401@gmail.com>

pages/windows/select-string.md

@@ -7,11 +7,11 @@
 
 - Search for a pattern within a file:
 
-`Select-String -Path "{{path/to/file}}" -Pattern '{{search_pattern}}'`
+`Select-String -Path "{{path\to\file}}" -Pattern '{{search_pattern}}'`
 
 - Search for an exact string (disables regular expressions):
 
-`Select-String -SimpleMatch "{{exact_string}}" {{path/to/file}}`
+`Select-String -SimpleMatch "{{exact_string}}" {{path\to\file}}`
 
 - Search for pattern in all `.ext` files in current dir:
 
@@ -19,8 +19,8 @@
 
 - Capture the specified number of lines before and after the line that matches the pattern:
 
-`Select-String --Context {{2,3}} "{{search_pattern}}" {{path/to/file}}`
+`Select-String --Context {{2,3}} "{{search_pattern}}" {{path\to\file}}`
 
 - Search stdin for lines that do not match a pattern:
 
-`Get-Content {{path/to/file}} | Select-String --NotMatch "{{search_pattern}}"`
+`Get-Content {{path\to\file}} | Select-String --NotMatch "{{search_pattern}}"`