update dates

README.org

@@ -19,6 +19,8 @@ The installation instructions are [[https://github.coventry.ac.uk/aa3172/rwanda-
 The installation can be time consuming and you may have questions about the installation process.
 Please raise any issues with installing on the [[https://github.coventry.ac.uk/aa3172/rwanda-summer-school-2022/issues][issues]] page.
 
+Installation should be completed and confirmed correct by *1st June 2022*. 
+
 * Programme
 
 The three-day Summer School will feature a number of workshops, keynotes, and hands-on development work. It will be in dual mode, allowing online participation allowing applicants from outside Rwanda to participate.
@@ -62,9 +64,9 @@ To apply for a position at the summer school [[https://forms.office.com/pages/re
 
 * Important dates
 
-Registration deadline: MAY 15TH 2022
+Registration deadline: +May 25th 2022+
 
-Notification of admittance: MAY 22ND 2022
+Installation screenshot deadline: *June 1st 2022*
 
 * Acknowledgments