add description of url text retrieval to README

Author: stoerr

README.md

@@ -7,26 +7,28 @@ This is currently in development, but is already useable. (In fact I use it on i
 
 ## Purpose
 
-The `Developers ChatGPT ToolBench` is a Java application designed to provide a plugin for ChatGPT that allows the AI to 
-access, read, and write files in the directory where the plugin is started. The plugin is implemented as an 
-executable jar. If you check out and compile this Git repository, you can also use the script 
-[bin/developersToolBenchPlugin](bin/developersToolBenchPlugin) after building it with 
+The `Developers ChatGPT ToolBench` is a Java application designed to provide a plugin for ChatGPT that allows the AI to
+access, read, and write files in the directory where the plugin is started. The plugin is implemented as an
+executable jar. If you check out and compile this Git repository, you can also use the script
+[bin/developersToolBenchPlugin](bin/developersToolBenchPlugin) after building it with
 [bin/developersToolBenchPlugin-buildStable](bin/developersToolBenchPlugin-buildStable).
 
 The plugin provides several operations, including:
 
 - Listing the files in a directory
 - Reading the contents of a file
-- Writing content to a file
+- Writing content to a file / changing file content
 - searching for regular expressions in files
 - Executing a shell script with given content as standard input
+- fetch the text content of an URL
 
 Caution: you currently need to be a paying user of ChatGPT (to have access to ChatGPT-4) and to be registered for the
 ChatGPT Plugin beta, probably as a plugin developer.
 
 ## Status
 
-It's useable; I'll be likely making extensions to it since I'm using it quite often when I'm asking ChatGPT questions.
+I'm regularily use it for my own development, and it seems quite stable. I'm using it quite often when I'm asking
+ChatGPT questions or small extensions.
 
 ## Usage
 
@@ -63,35 +65,37 @@ Here are some examples of how to use the `Developers ChatGPT ToolBench`:
 - **Write File**: To write content to a file, you can use the `writeFile` operation. In ChatGPT, you would ask the AI to
   write a specific content to a file, and it would send a request to the plugin to perform this operation.
 
-- **Search Files**: to search for Strings in files, you can use the 'grepFiles' operation. In ChatGPT, you could ask 
+- **Search Files**: to search for Strings in files, you can use the 'grepFiles' operation. In ChatGPT, you could ask
   to search for files with a file name pattern and containing a string or pattern.
 
 - **Execute Action**: To execute a shell script with given content as standard input, you can use the `executeAction`
   operation. In ChatGPT, you would ask the AI to execute a specific action, and it would send a request to the plugin to
   perform this operation. The shell script should be located at `.cgptfmgr/{actionName}.sh`, where `{actionName}` is a
-  parameter provided in the query string. The content is passed as standard input to the shell script. Some examples 
+  parameter provided in the query string. The content is passed as standard input to the shell script. Some examples
   are in [.cgptdevbench/](.cgptdevbench/) and
   [src/test/resources/testdir/.cgptdevbench](src/test/resources/testdir/.cgptdevbench) .
-  
 
-Remember, the `Developers ChatGPT ToolBench` operates on the directory where it was started, 
-so be careful to start it in a  directory that contains the files you want to access.
+- **Fetch the text content of an URL**: gives ChatGPT simple web access: this can perform a GET request and returns 
+  the text content of the URL (not the HTML) to ChatGPT.
+
+Remember, the `Developers ChatGPT ToolBench` operates on the directory where it was started,
+so be careful to start it in a directory that contains the files you want to access.
 
 ## Configuring FileManagerPlugin for use in ChatGPT
 
-To use the `Developers ChatGPT ToolBench` with ChatGPT, you need to register it as a plugin in the ChatGPT interface. 
+To use the `Developers ChatGPT ToolBench` with ChatGPT, you need to register it as a plugin in the ChatGPT interface.
 Here's a step-by-step guide on how to do this:
 
 1. **Register as a Plugin Developer**: If you haven't already, register as a plugin developer with ChatGPT. This will
    give you access to the plugin developer interface where you can add your own plugins.
 
-2. **Start the Plugin**: Navigate to the directory you want to access and run the `Developers ChatGPT ToolBench` 
+2. **Start the Plugin**: Navigate to the directory you want to access and run the `Developers ChatGPT ToolBench`
    program. This will start a server on port 3002 (by default).
 
 3. **Add the Plugin**: In the ChatGPT interface, navigate to the plugin developer section and select "Develop your own
    plugin", and enter the url `localhost:3002`
 
 4. **Test the Plugin**: Once you've added the plugin, you can test it in the ChatGPT interface. Try asking the AI to
-   list the files in the directory, read a specific file, write to a file, or execute a specific action after 
+   list the files in the directory, read a specific file, write to a file, or execute a specific action after
    setting up some actions in a .cgptdevbench directory in the directory you're running it. If everything
    is set up correctly, the AI should be able to perform these operations using the plugin.