Some final fixes in guide text

guide.lua

@@ -66,9 +66,9 @@ local function createMachineInformationTable(fields,machineName,num)
 	local fieldLabels={
 		inputVoltage="Input voltage level",
 		outputVoltage="Output voltage level",
-		voltage="Voltage",
-		lowVoltage="Low voltage",
-		highVoltage="High voltage",
+		voltage="Voltage level",
+		lowVoltage="Low voltage level",
+		highVoltage="High voltage level",
 		damageRed="Damage reduction",
 		recipe="Recipe type",
 		powerCapacity="Power capacity",
@@ -87,7 +87,7 @@ local function createMachineInformationTable(fields,machineName,num)
 		})
 	end
 
-	return createTable(rows,false,string.format("Figure %d. Information for %s",(num or 1),machineName))
+	return createTable(rows,false,S("Figure @1. Information for @2",(num or 1),machineName))
 end
 
 local pages={
@@ -1887,7 +1887,16 @@ local pages={
 local function preprocessHypertext(content,vars)
 	-- Find and replace strings which should be translated, this pattern matches any string that doesn't include | which is contained within || at both ends
 	content=string.gsub(content,"||([^|]+)||",function(sourceString)
-		return S(sourceString)
+		-- Replace all sequences which should be treated as variables inside translation with format string
+		local trFormatIndex=1
+		local trFormatValues={}
+		sourceString=string.gsub(sourceString,"{{([^{}]+)}}",function(var)
+			local result=string.format("@%d",trFormatIndex)
+			trFormatIndex=trFormatIndex+1
+			table.insert(trFormatValues,vars[var] or "nil")
+			return result
+		end)
+		return S(sourceString,unpack(trFormatValues))
 	end)
 
 	-- Replace all sequences which should be treated as variables with values provided in vars