Docs, Starcraft 2: Add French documentation for setup and game page (#3031)

* Started to create the french doc

* First version of sc2 setup in french finish, created the file for the introduction of the game in french

* French-fy upgrade in setup, continue translation of game description

* Finish writing FR game page, added a link to it on the english game page. Re-read and corrected both the game page and setup page.

* Corrected a sentence in the SC2 English setup guide.

* Applied 120 carac limits for french part, applied modification for consistency.

* Added reference to website yaml checker, applied several wording correction/suggestions

* Modified link to AP page to be in relative (fr/en), uniformed SC2 and random writing (fr), applied some suggestons in writing quality(fr), added a mention to the datapackage (fr/en), enhanced prog balancing recommendation (fr)

* Correction of some grammar issues

* Removed name correction for english part since done in other PR; added mention to hotkey and language restriction

* Applied suggestions of peer review

* Applied mofications proposed by reviewer about the external website

---------

Co-authored-by: neocerber <neorcerber@gmail.com>

worlds/sc2/__init__.py

@@ -22,7 +22,7 @@ from .MissionTables import MissionInfo, SC2Campaign, lookup_name_to_mission, SC2
 
 
 class Starcraft2WebWorld(WebWorld):
-    setup = Tutorial(
+    setup_en = Tutorial(
         "Multiworld Setup Guide",
         "A guide to setting up the Starcraft 2 randomizer connected to an Archipelago Multiworld",
         "English",
@@ -31,7 +31,16 @@ class Starcraft2WebWorld(WebWorld):
         ["TheCondor", "Phaneros"]
     )
 
-    tutorials = [setup]
+    setup_fr = Tutorial(
+        setup_en.tutorial_name,
+        setup_en.description,
+        "Français",
+        "setup_fr.md",
+        "setup/fr",
+        ["Neocerber"]
+    )
+
+    tutorials = [setup_en, setup_fr]
 
 
 class SC2World(World):