Fix typos

README.md

@@ -941,7 +941,7 @@ $ sudo srm -r $GNUPGHOME || sudo rm -rf $GNUPGHOME
 $ gpg --delete-secret-key $KEYID
 ```
 
-Make sure you have securely erased keys, including recovation certificates, if a Live image was not used!
+Make sure you have securely erased keys, including revocation certificates, if a Live image was not used!
 
 # Using keys
 
@@ -1411,7 +1411,7 @@ Then, open a terminal and run the following commands:
 
 Create a shortcut that points to `gpg-connect-agent /bye` and place it in your startup folder to make sure the agent starts after a system shutdown.
 
-Now you can use PuTTY for public key SSH authentication. When the server asks for public key verification, PuTTY will foward the request to GPG, whcih will prompt you for your PIN and authorize the login using your YubiKey.
+Now you can use PuTTY for public key SSH authentication. When the server asks for public key verification, PuTTY will forward the request to GPG, which will prompt you for your PIN and authorize the login using your YubiKey.
 
 # Troubleshooting