README: fix small typos (trailofbits#1262)

Author: schu

README.md

@@ -173,13 +173,13 @@ Note the admin username is `ubuntu` instead of `root` on providers other than Di
 
 ## Adding or Removing Users
 
-If you chose the save the CA certificate during the deploy process, then Algo's own scripts can easily add and remove users from the VPN server.
+If you chose to save the CA certificate during the deploy process, then Algo's own scripts can easily add and remove users from the VPN server.
 
 1. Update the `users` list in your `config.cfg`
 2. Open a terminal, `cd` to the algo directory, and activate the virtual environment with `source env/bin/activate`
 3. Run the command: `./algo update-users`
 
-After this process completes, the Algo VPN server will contains only the users listed in the `config.cfg` file.
+After this process completes, the Algo VPN server will contain only the users listed in the `config.cfg` file.
 
 ## Additional Documentation