Improvements in README Figure 4 'The overview of package functions to get the data'

[eugenividal]

This key figure, displayed in the README and both Codebooks, could be improved by:

• Checking for typos (e.g., munucipal → municipal, houlry → hourly).
• Being more precise in the specific time frames to consider for using different functions to get the data (e.g., clarifying "a few days"—does this mean 7, 15, or up to a month?).
• Aligning the first three boxes at the same height/level (if possible) for better visual consistency.