Nice, but I think the 2017 chart is incorrectly normalized (by Redmonk, not you). Javascript is the most popular language on both Github and Stackoverflow and is probably meant to be positioned at 100/100 in both 2017 and 2018. I think their graphics person messed up in 2017. I can’t confirm this suspicion since Redmonk doesn’t explain their strange axes scales, but putting Javascript around 95/95 in 2017 makes no sense at all.
If the scale is off in this way then all languages will tend to move upwards and to the right from 2017 to 2018, so Julia’s growth in the rankings is somewhat less than it seems here.