Rename fortran entries

See https://github.com/spenserblack/gengo/pull/135/files

Author: spenserblack

languages.yaml

@@ -666,7 +666,7 @@ Forth:
     ansi:
       - red
     chip: "#341708"
-FortranLegacy:
+FORTRAN Legacy:
   ascii: |
     {4}    _ {1}__ __
     {4}  _|_ {1} /  /
@@ -695,7 +695,7 @@ FortranLegacy:
       - red
     chip: "#4D41B1"
   serialization: fortran
-FortranModern:
+Fortran Modern:
   ascii: |
     {4}    _{1} _  _
     {4}  _|_{1}(_|/ \