Update README.md

README.md

-# requirement
+# Requirement
 
 - Theme [metropolis](https://github.com/matze/mtheme)
 
 
 ```
-tlmgr update --all
+sudo tlmgr update --all
 ```
 
 - xelatex
 
 ```
-sudo apt-get install texlive-xetex
+sudo apt-get install -y texlive-xetex
 ```
 
 
@@ -35,5 +35,6 @@ sudo apt-get install texlive-xetex
 
 # Settings
 
-in the file `.settings.org` missing packages or configurations e.g. beamer style can be added.
-Update the institute name in that file.
+In the file `.settings.org` missing packages or configurations e.g. beamer style can be added.
+
+**Update** the institute name in that file.