Not quite - you’re missing a header row, so it’s made January the header row instead. Stick this at the top:
|Month|Modern name|Old name| |---|---|---|
Delete the extra |---|---|---| that appears under January.
Fun fact: while the article mentions that October is called “the month without gods” because they all gather in Izumo that month, it doesn’t mention that in Izumo, the month is called 神在月, “the month with all the gods”.
Here’s a bit of trivia related to the old Japanese calendar names~
In the Ghibli film Tonari no Totoro, there was originally only going to be one girl as a main character. As the story-writing progressed, though, it was decided that there would be two sisters instead. If you look at their names, you can find a hidden reference to this fact that they were originally going to be one person: the older sister’s name is Satsuki, the old Japanese name for the month of May, and the younger sister’s name is Mei, a romaji rendition of the English name of the same month.