docs: Update template_functions.md (#12841)

Author: doanbutar

docs/sources/query/template_functions.md

@@ -303,26 +303,26 @@ Example:
 
 Use this function to test to see if one string is contained inside of another.
 
-Signature: `contains(s string, src string) bool`
+Signature: `contains(src string, s string,) bool`
 
 Examples:
 
 ```template
-{{ if contains .err "ErrTimeout" }} timeout {{end}}
+{{ if contains "ErrTimeout" .err }} timeout {{end}}
 {{ if contains "he" "hello" }} yes {{end}}
 ```
 
 ## eq
 
 Use this function to test to see if one string has exact matching inside of another.
 
-Signature: `eq(s string, src string) bool`
+Signature: `eq(src string, s string) bool`
 
 Examples:
 
 ```template
-{{ if eq .err "ErrTimeout" }} timeout {{end}}
-{{ if eq "he" "hello" }} yes {{end}}
+{{ if eq "ErrTimeout" .err}} timeout {{end}}
+{{ if eq "hello" "hello" }} yes {{end}}
 ```
 
 ## hasPrefix and hasSuffix