2 additional LaTeX subs: make strikethrough easier, and add missing Euro sign

Author: stevengj

base/latex_symbols.jl

@@ -48,6 +48,9 @@ const latex_symbols = [
     "\\female" => "♀",
     "\\mars" => "♂",
 
+    "\\sout" => "̶",# ulem package, same as Elzbar
+    "\\euro" => "€",
+
 # 732 symbols generated from unicode.xml
     "\\textexclamdown" => "¡",
     "\\sterling" => "£",
@@ -782,5 +785,4 @@ const latex_symbols = [
     "\\overbrace" => "︷",
     "\\underbrace" => "︸",
 
-
 ]