README: Update supported SCI games

README.md

@@ -140,7 +140,7 @@ its name to ScummVM ('VM' meaning Virtual Machine).
 
 Over time support for a lot of non-SCUMM games has been added, and
 ScummVM now also supports many of Sierra's AGI and SCI games (such as
-King's Quest 1-6, Space Quest 1-5, ...), Discworld 1 and 2, Simon the
+King's Quest 1-7, Space Quest 1-6, ...), Discworld 1 and 2, Simon the
 Sorcerer 1 and 2, Beneath A Steel Sky, Lure of the Temptress, Broken
 Sword I and II, Flight of the Amazon Queen, Gobliiins 1-3, The Legend of
 Kyrandia series, many of Humongous Entertainment's children's SCUMM
@@ -378,6 +378,7 @@ supported games can be found here:
 | Quest for Glory 1                          | \[qfg1vga\]          |
 | Quest for Glory 2                          | \[qfg2\]             |
 | Quest for Glory 3                          | \[qfg3\]             |
+| Quest for Glory 4                          | \[qfg4\]             |
 | RAMA                                       | \[rama\]             |
 | Slater & Charlie Go Camping                | \[slater\]           |
 | Shivers                                    | \[shivers\]          |