docs: vCard casing

Author: SMadani

SNIPPETS.md

@@ -828,7 +828,7 @@ var response = client.getMessagesClient().sendMessage(
 );
 System.out.println("Message sent successfully. ID: "+response.getMessageUuid());
 ```
-#### Send MMS Vcard
+#### Send MMS vCard
 
 ```java
 var response = client.getMessagesClient().sendMessage(

src/main/java/AggregateSnippets.java

@@ -147,6 +147,7 @@ private static String toHeadingTitle(String title) {
         var result = (title.substring(0, 1).toUpperCase() + title.substring(1))
                 .replace("NCCO", "ncco")    // To avoid adding spaces in the next regex
                 .replaceAll("(?<!^)([A-Z])(?![A-Z])", " $1")
+                .replace("Vcard", "vCard")
                 .replace("Numberinsight2", "Fraud Detection")
                 .replace("Numberinsight", "Number Insight")
                 .replace("Verify\n", "Verify (Legacy)\n")