Fix typo in install docs, closes #3723

doc/install/installation.md

@@ -282,7 +282,7 @@ The setup has created an admin account for you. You can use it to log in:
     5iveL!fe
 **Important Note:**
-Please go over to your profile page and immediately chage the password, so
+Please go over to your profile page and immediately change the password, so
 nobody can access your GitLab by using this login information later on.
 **Enjoy!**