Update README.md

README.md

@@ -13,7 +13,7 @@ This is the release related to [report 32](https://www.imperial.ac.uk/mrc-global
 
 To run this code you need to follow the steps listed in the age-specific model [here](https://github.com/ImperialCollegeLondon/covid19model/tree/master/covid19AgeModel).
 
-The code shold be run in full mode to obtain credible results. Not running full model to estimate anything is not recommended and discouraged. Only full run should be used to get results.
+The code should be run in full mode to obtain credible results. Not running full model to estimate anything is not recommended and discouraged. Only full run should be used to get results.
 
 The instructions for European, Italy, Brazil, USA, Nature and IFR  code are same as earlier (Look at version 3, version 4, version 5, version 6, version 7 and version 8). This release is specific to [report 32](https://www.imperial.ac.uk/mrc-global-infectious-disease-analysis/covid-19/report-32-us/).
 
@@ -47,7 +47,7 @@ This is the release related to [report 23](https://www.imperial.ac.uk/mrc-global
 
 To run this code you can directly run the base-usa.r file or from command line after seting the current directory as the repository directory run the following command `Rscript base-usa.r`
 
-The code shold be run in full mode to obtain any results. Not running full model to estimate anything is not recommended and discouraged. Only full run should be used to get results.
+The code should be run in full mode to obtain any results. Not running full model to estimate anything is not recommended and discouraged. Only full run should be used to get results.
 
 The instructions for European, Italy and Brazil code are same as earlier (Look at version 3, version 4 and version 5). This release is specific to [USA report](https://www.imperial.ac.uk/mrc-global-infectious-disease-analysis/covid-19/report-23-united-states/).