docs(README): Update prompts for file operations to improve clarity and consistency

Author: codeboyzhou

mcp-server-filesystem/README.adoc

@@ -31,20 +31,20 @@ Java server implementing Model Context Protocol (MCP) for filesystem operations.
     ** `recursive` (boolean): Whether to list files recursively. Default is `false`.
   * Output: A list of file names (paths if 'recursive' is `true`), or empty string if no files are found.
 
-=== Prompt
+=== Prompts
 
 - *read_file*
   * For `read_file` tool
   * Input: `filepath` (string)
-  * Output: What is the content of this file: `<filepath>`
+  * Output: What is the content of this file: `<filepath>`.
 
 - *list_files*
   * For `list_files` tool
   * Input: `directoryPath` (string), `fileNamePattern` (string), `recursive` (boolean)
   * Output:
-    ** Please list files in this directory: `<directoryPath>`
-    ** Please list files in this directory: `<directoryPath>`, with file name pattern: `<fileNamePattern>`
-    ** Please list files in this directory: `<directoryPath>`, with file name pattern: `<fileNamePattern>`, recursively
+    ** Please list files in this directory: `<directoryPath>`.
+    ** Please list files in this directory: `<directoryPath>`, with file name pattern: `<fileNamePattern>`.
+    ** Please list files in this directory: `<directoryPath>`, with file name pattern: `<fileNamePattern>`, recursively.
 
 == Usage with MCP Client