Update 01_simple-introduction.mdx

docs/01_getting-started/01_learn-the-basics/01_simple-introduction.mdx

@@ -68,7 +68,7 @@ We have added these three examples, and our simple diagram is beginning to look
 
 ### What you have learnt so far
 
-So far, this is what we have learnt about Genesis applications:
+So far, this is what we have learnt about the back end:
 
 - A database is at the heart, surrounded by three key modules that serve the front end: Data Server (real-time data), Request Server (static data) and Event Handler (database changes).
 - The Router module ensures messages are routed correctly to and from the front end.
@@ -96,7 +96,7 @@ The Entity Management front end, for example, gives you a ready-made grid and an
 The Genesis platform provides some useful tools that enable you to get moving quickly and start using all those components productively:
 
 ### Genx
-The Genx CLI tool enables you to scaffold new Genesis applications from scratch from a choice of seeds. It creates the correct project structure, provides empty files for the key server modules, and also gives you blank home page files where you can quickly add Genesis components and micro front-ends to create a rich UI.
+The Genx CLI tool enables you to scaffold new Genesis applications from scratch from a choice of seeds. It creates the correct project structure, provides empty files for the key server modules, and also gives you blank home page files where you can quickly add Genesis components and micro front-ends to create the UI.
 
 ### Genesis Create 
 Genesis Create enables you to create a new project and to generate specific code for your key modules and your front end without entering any code.