fixed outdated flags (#5684)

* fixed outdated flags

* made changes as per suggested

redbot/cogs/trivia/data/lists/worldflags.yaml

@@ -12,7 +12,7 @@ What country is represented by this flag? https://i.imgur.com/1VsVFYK.png:
 - Maldives
 What country is represented by this flag? https://i.imgur.com/1dQ8NBz.png:
 - Brazil
-What country is represented by this flag? https://i.imgur.com/1o8hBla.png:
+What country is represented by this flag? https://i.imgur.com/bRZ8gai.png:
 - Mauritania
 What country is represented by this flag? https://i.imgur.com/1tH3blw.png:
 - Denmark
@@ -87,7 +87,7 @@ What country is represented by this flag? https://i.imgur.com/BqwHKYv.png:
 - Hvid Rød
 What country is represented by this flag? https://i.imgur.com/C3kWeQw.png:
 - Bahrain
-What country is represented by this flag? https://i.imgur.com/CEetl8W.png:
+What country is represented by this flag? https://i.imgur.com/HzktfX0.png:
 - Peru
 What country is represented by this flag? https://i.imgur.com/CXQK227.png:
 - Morocco
@@ -140,6 +140,8 @@ What country is represented by this flag? https://i.imgur.com/LgwBULL.png:
 What country is represented by this flag? https://i.imgur.com/Ls07jJq.png:
 - Democratic Republic of the Congo
 - Dem. Rep. of Congo
+- DRC
+- D.R.C.
 What country is represented by this flag? https://i.imgur.com/Ma1ivs0.png:
 - Liberia
 What country is represented by this flag? https://i.imgur.com/MrAUl3e.png:
@@ -178,6 +180,7 @@ What country is represented by this flag? https://i.imgur.com/RgnmHkX.png:
 - Chile
 What country is represented by this flag? https://i.imgur.com/RhbzmE9.png:
 - Guinea-Bissau
+- Guinea Bissau
 What country is represented by this flag? https://i.imgur.com/RpLNeK5.png:
 - Ecuador
 What country is represented by this flag? https://i.imgur.com/SUTmKC3.png:
@@ -213,7 +216,7 @@ What country is represented by this flag? https://i.imgur.com/WSCunIE.png:
 - Vatican
 What country is represented by this flag? https://i.imgur.com/WjFxXYM.png:
 - Iran
-What country is represented by this flag? https://i.imgur.com/WtPvwLD.png:
+What country is represented by this flag? https://i.imgur.com/zvTOSkO.jpg:
 - Costa Rica
 What country is represented by this flag? https://i.imgur.com/Xd2tgrz.png:
 - Guyana
@@ -225,10 +228,14 @@ What country is represented by this flag? https://i.imgur.com/YaA07yt.png:
 - Belize
 What country is represented by this flag? https://i.imgur.com/Yvry0ap.png:
 - Central African Republic
+- CAR
+- C.A.R.
 What country is represented by this flag? https://i.imgur.com/ZZJK5He.png:
 - Republic of the Congo
 - Congo
 - Republic of Congo
+- ROC
+- R.O.C.
 What country is represented by this flag? https://i.imgur.com/ZnhOID0.png:
 - Lithuania
 What country is represented by this flag? https://i.imgur.com/Zphmsnu.png:
@@ -285,7 +292,7 @@ What country is represented by this flag? https://i.imgur.com/gGhBri9.png:
 - Sweden
 What country is represented by this flag? https://i.imgur.com/gI250YG.png:
 - Thailand
-What country is represented by this flag? https://i.imgur.com/h6qegtn.png:
+What country is represented by this flag? https://i.imgur.com/ybpqZlb.png:
 - Bolivia
 What country is represented by this flag? https://i.imgur.com/h9YUraD.png:
 - Uruguay
@@ -445,3 +452,5 @@ What country is represented by this flag? https://i.imgur.com/zLuBq1l.png:
 - Algeria
 What country is represented by this flag? https://i.imgur.com/zTOVfhf.png:
 - Hungary
+What country is represented by this flag? https://i.imgur.com/NgpUYIe.png:
+- Palestine