Updated links on the downloads page

I’ve been through the site and updated any dead / broken links as a forum user mentioned that the link to download single player maps no longer works. I have updated this and they are also available from the drop down menu (hover over Order of the Flame) also I have updated the description of the Community Patch which replaces the 445 patch enabling game compatibility with Windows 10 amongst many other fixes. This also installs a selection of single player and multi player maps. Current supported languages are English, German and Spanish. Thanks to our Discord members for the German and Spanish translations.