Update help file to refer to Delphi 10.4 as latest supported compiler

Author: delphidabbler

Src/Help/HTML/about_compiler_checks.htm

@@ -34,7 +34,7 @@ <h1>
     </p>
     <p>
       The supported compilers are the Win32 Delphi compilers from Delphi 2 to
-      Delphi 10.1 Berlin and Free Pascal.
+      Delphi 10.4 Sydney and Free Pascal.
     </p>
     <h2>
       Configuring CodeSnip

Src/Help/HTML/dlg_configcompilers.htm

@@ -281,7 +281,7 @@ <h2>
     </h2>
     <p>
       <em>CodeSnip</em> can automatically detect the presence of Win 32 Delphi
-      compilers from Delphi 2 to Delphi 10.1 Berlin. Click the <em>Detect Delphi
+      compilers from Delphi 2 to Delphi 10.4 Sydney. Click the <em>Detect Delphi
       Compilers</em> button to do this. Any supported installed version of
       Delphi will be recorded. This can save considerable time and avoid
       errors.