GUI - fix error log markdown syntax

* Process log wasn’t being correctly formatted

Author: samaaron

app/gui/qt/mainwindow.cpp

@@ -1450,7 +1450,7 @@ void MainWindow::startupError(QString msg) {
 
   QMessageBox *box = new QMessageBox(QMessageBox::Warning,
 				     tr("Server boot error..."), tr("Sonic Pi Boot Error\n\nApologies, a critical error occurred during startup") + ":\n\n " + msg + "\n\n" + tr("Please consider reporting a bug at") + "\nhttp://github.com/samaaron/sonic-pi/issues");
-  QString error_report = "Sonic Pi Boot Error Report\n==================\n\n\nSystem Information\n----------------\n\n* Sonic Pi version: " + version + "\n* OS: " + osDescription() + "\n\n\nGUI Log\n-------\n\n**`" + gui_log_path + "`**\n```\n" + gui_log + "\n```\n\n\nServer Errors\n-------------\n\n**`" + server_error_log_path + "`**\n```\n" + server_error_log + "\n```\n\n\nServer Output\n-------------\n\n**`" + server_output_log_path + "`**\n```\n" + server_output_log + "\n```\n\n\nScsynth Output\n--------------\n\n**`" + scsynth_log_path + "`**\n```\n" + scsynth_log + "\n\n\nProcess Log\n--------------\n\n**`" + process_log_path + "`**\n```\n" + processes_log + "\n\n\n```\n";
+  QString error_report = "Sonic Pi Boot Error Report\n==================\n\n\nSystem Information\n----------------\n\n* Sonic Pi version: " + version + "\n* OS: " + osDescription() + "\n\n\nGUI Log\n-------\n\n**`" + gui_log_path + "`**\n```\n" + gui_log + "\n```\n\n\nServer Errors\n-------------\n\n**`" + server_error_log_path + "`**\n```\n" + server_error_log + "\n```\n\n\nServer Output\n-------------\n\n**`" + server_output_log_path + "`**\n```\n" + server_output_log + "\n```\n\n\nScsynth Output\n--------------\n\n**`" + scsynth_log_path + "`**\n```\n" + scsynth_log + "\n```\n\n\nProcess Log\n--------------\n\n**`" + process_log_path + "`**\n```\n" + processes_log + "\n\n\n```\n";
   box->setDetailedText(error_report);
 
   QGridLayout* layout = (QGridLayout*)box->layout();