June 11 updates

[juliamuiruri4]

Resource Link Updates:

• Updated the link for the online event series to point to the latest study guide, providing updated resources and schedules. (README.md, README.mdL11-R11)

Event Details Updates:

• Replaced the link for "Elliot, Herzegovina" with a corrected forms.office.com link for improved accessibility. (README.md, README.mdL61-R70)
• Renamed "Federal University of Agriculture, Abeokuta, Ogun" to "MLSA - Nigeria" for consistency in naming conventions. (README.md, README.mdL61-R70)

New Events Added:

• Added "MLSA Peru" and "MLSA DEKUT" to the list of available in-person or virtual study jams, expanding the event offerings for developers in Peru and Kenya. (README.md, README.mdL61-R70)