update password reset documentation

docs/pwd_reset.md

@@ -17,9 +17,9 @@ that is valid for a few minutes, so you should click on that link quickly.
 ## Password Change
 
 If you know your existing password but want to change it, go to the
-[Keycloak account security page](https://keycloak.icecube.wisc.edu/auth/realms/IceCube/account/#/account-security/signing-in)
+[Keycloak account security page](https://keycloak.icecube.wisc.edu/auth/realms/IceCube/account/#/account-security/signing-in).
 It looks like the following:
 ![account security](images/keycloak_account_security.png)
 
-Click on "Update". You will see the password change form:
+Click on the "Update" button. You will see the password change form:
 ![account change password](images/keycloak_password.png)