update url import icon and wording

frontend/src/components/Benchmark/CreateForm.jsx

@@ -27,7 +27,7 @@ import MenuBookIcon from "@mui/icons-material/MenuBook";
 import DownloadIcon from "@mui/icons-material/Download";
 import VisibilityIcon from "@mui/icons-material/Visibility";
 import CloseIcon from "@mui/icons-material/Close";
-import LinkIcon from "@mui/icons-material/Link";
+import PublicIcon from "@mui/icons-material/Public";
 import { useThemeMode } from "../../hooks/useThemeMode";
 import getTheme from "../../config/theme";
 import API_CONFIG from "../../config/api";
@@ -365,7 +365,7 @@ function CreateForm({ onStartGeneration }) {
         >
           {selectedDocument?.name && urlSelected ? (
             <>
-              <LinkIcon sx={{ fontSize: 50, color: "primary.main", mb: 1 }} />
+              <PublicIcon sx={{ fontSize: 50, color: "primary.main", mb: 1 }} />
               <Typography
                 variant="h6"
                 component="div"
@@ -383,7 +383,7 @@ function CreateForm({ onStartGeneration }) {
                 fullWidth
                 variant="outlined"
                 label="Enter a new URL"
-                placeholder="https://example.com"
+                placeholder="ex: https://en.wikipedia.org/wiki/Real_Madrid_CF"
                 value={urlInput}
                 onChange={handleUrlInputChange}
                 disabled={isLoading}
@@ -394,16 +394,20 @@ function CreateForm({ onStartGeneration }) {
               {isLoading && urlSelected ? (
                 <CircularProgress size={50} sx={{ mb: 1 }} />
               ) : (
-                <LinkIcon sx={{ fontSize: 50, color: "primary.main", mb: 1 }} />
+                <PublicIcon
+                  sx={{ fontSize: 50, color: "primary.main", mb: 1 }}
+                />
               )}
               <Typography variant="h6" component="div" gutterBottom>
-                {isLoading && urlSelected ? "Processing URL..." : "Enter a URL"}
+                {isLoading && urlSelected
+                  ? "Processing URL..."
+                  : "Enter an URL"}
               </Typography>
               <TextField
                 fullWidth
                 variant="outlined"
                 label="Website URL"
-                placeholder="https://example.com"
+                placeholder="ex:https://en.wikipedia.org/wiki/Real_Madrid_CF"
                 value={urlInput}
                 onChange={handleUrlInputChange}
                 disabled={isLoading}