update picom.sample.conf

Signed-off-by: jialeens <jialeadmin@163.com>

picom.sample.conf

@@ -348,13 +348,13 @@ log-level = "warn";
 # logs might still be written to the stderr.
 # When setting this option from the config file, it is recommended to use an absolute path.
 #
-# log-file = '/path/to/your/log/file'
+# log-file = "/path/to/your/log/file"
 
 # Show all X errors (for debugging)
 # show-all-xerrors = false
 
 # Write process ID to a file.
-# write-pid-path = '/path/to/your/log/file'
+# write-pid-path = "/path/to/your/log/file"
 
 # Window type settings
 #