Update docs/architecture/architecture.md

Co-authored-by: Laurens Weijs <[email protected]>
Signed-off-by: GuusjeJuijn <[email protected]>

docs/architecture/architecture.md

@@ -133,7 +133,7 @@ The first option is to execute the task locally by using the command line interf
 
 The second option is to use the Algorithm Management Toolkit (AMT). The user starts by visiting the Algorithm Management Toolkit website. Here, the user encounters a front end interface showing a planning board for projects and tasks. This planning board contains 3 columns: ‘To do’,  ‘Doing’ and ‘Done’. When a user drags a task from ’To do’ to ‘Doing’, the front end makes an API call to the back end of the AMT.
 
-The back end consists of three components, showed in the component diagram at the end of this page.
+The backend consists of three components, showed in the component diagram at the end of this page.
 1. An API application, which provides the project and tasks management functionality via HTTPS
 2. The business logic, which is the core logic of the AMT
 3. A system state, which provides the state of the AMT.