add script for fix nginx configs

certs/nginx_update_ssl_entries.sh

+#!/bin/sh
+
+CONF="$1"
+if grep -q ssl_trusted_certificate $CONF ; then
+    echo "ssl_trusted_certificate already in $CONF"
+else
+    sed -i -e "s|\(.*\)\(ssl_certificate_key.*/etc/letsencrypt/live/\)\(.*\)\(/privkey.pem;.*\)|\1\2\3\4\n\1ssl_trusted_certificate /etc/letsencrypt/live/\3/chain.pem;|" $CONF
+    echo "fixed in $CONF"
+fi
+
+if grep -q "listen 443" $CONF ; then
+    if grep "listen 443 ssl httpd2;" $CONF ; then
+        echo "listen 443 ssl http2 already in $CONF"
+    else
+        sed -i -e "s|listen 443 ssl;|listen 443 ssl http2;|g" $CONF
+    fi
+fi
\ No newline at end of file