Fix time.gpt example to add more guidance to arg description.

Fix nodejs-imagegen example to use the dalle-image-generation repo.

Author: Sangeetha Hariharan

examples/nodejs-imagegen/server.js

@@ -51,7 +51,7 @@ app.post('/generate-logo', async (req, res) => {
     }
 `;
     const tool = new gptscript.Tool({
-        tools: ['github.com/gptscript-ai/image-generation'],
+        tools: ['github.com/gptscript-ai/dalle-image-generation'],
         jsonResponse: true,
         instructions: instructions,
     })

examples/time.gpt

@@ -5,10 +5,10 @@ Ask time to get you the time in different timezones.
 ---
 name: time
 description: Can tell current time in any timezone,
-args: timezone: The timezone you want time in.
+args: timezone: The timezone you want time in e.g. 'Pacific/Honolulu'
 
 #!/bin/bash
 echo "Your current date and time is "
 date
 echo "Time in your requested timezone ${timezone} is " 
-TZ=${timezone} date
+TZ=${timezone} date