//default code :
String formattedString = android.text.Html.fromHtml(videodesc).toString();
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, videoname + "\n");
sendIntent.setType("text/plain");
startActivity(sendIntent);

//change with this code :
String formattedString = android.text.Html.fromHtml(videodesc).toString();
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, videoname + "\n" + "your text" + "\n" + "https://play.google.com/store/apps/details?id=com.solodroid.yourvideoschannel");
sendIntent.setType("text/plain");
startActivity(sendIntent);