[Add] Gave missions some headers with simple explantions.

dat/missions/cargo.lua

@@ -1,3 +1,7 @@
+-- [[
+--  Handle the randomly created cargo delivery missions.
+-- ]]
+
 lang = lephisto.lang()
 if lang == "es" then
    -- Not translated atm.

dat/missions/emp_cargo00.lua

@@ -1,3 +1,7 @@
+--[[
+--  Simple cargo mission that optns up the Empire cargo missions.
+--]]
+
 lang = lephisto.lang()
 if lang == "es" then
   -- Not translated atm.

dat/missions/emp_collective00.lua

@@ -1,3 +1,8 @@
+--[[
+--  Start the collective mini campaign.
+--
+--  You must inspect a stray drone.
+--]]
 lang = lephisto.lang()
 if lang == "es" then
   -- Not translated atm.

dat/missions/emp_collective01.lua

@@ -1,3 +1,8 @@
+--[[
+--  Second mission in the mini collective compaign.
+--
+--  You must inspect a system for wireless communications.
+--]]
 lang = lephisto.lang()
 if lang == "es" then
   -- Not translated atm.

dat/missions/emp_collective02.lua

@@ -1,3 +1,8 @@
+--[[
+--  Third mission in the collective campaign.
+--
+--  You must land on an ex-empire planet in collective territory and return.
+--]]
 lang = lephisto.lang()
 if lang == "es" then
   -- Not translated yet.

dat/missions/es_cargo.lua

@@ -1,3 +1,7 @@
+--[[
+    Handle the randomly generated Empire cargo missions.
+--]]
+
 lang = lephisto.lang()
 if lang == "es" then
   -- Not translated atm.