docs: added general game engine architecture picture

Author: San7o

docs/DESIGN.md

@@ -21,10 +21,9 @@ cross-platform abstraction to the developer.
 Brenta-Engine is more positioned towards the "big-engine" category,
 while my other game engine
 [micro-engine.h](https://san7o.github.io/micro-engine.h/) falls on the
-other side. Here is an high level overview of the major classes that
-are used in the engine:
+other side.
 
-![high-level-overview](./brenta-picture.png)
+![game-engine-architecture](./game-engine-architecture.png)
 
 ## Design proces
 
@@ -65,6 +64,11 @@ works in order to optimize it.
 
 ![engine-and-os](./engine-and-os.png)
 
+Here is an high level overview of the major classes that are used in
+the engine:
+
+![high-level-overview](./brenta-picture.png)
+
 ## Subsystems
 
 One of the first architectural decision I made was the introduction of

docs/game-engine-architecture.png

@@ -33,11 +33,11 @@ <h1 id="design">Design</h1>
 <p>Brenta-Engine is more positioned towards the "big-engine" category,
 while my other game engine <a
 href="https://san7o.github.io/micro-engine.h/">micro-engine.h</a> falls
-on the other side. Here is an high level overview of the major classes
-that are used in the engine:</p>
+on the other side.</p>
 <figure>
-<img src="./brenta-picture.png" alt="high-level-overview" />
-<figcaption aria-hidden="true">high-level-overview</figcaption>
+<img src="./game-engine-architecture.png"
+alt="game-engine-architecture" />
+<figcaption aria-hidden="true">game-engine-architecture</figcaption>
 </figure>
 <h2 id="design-proces">Design proces</h2>
 <p>Brenta's development has been more iterative than meticulously
@@ -75,6 +75,12 @@ <h2 id="design-proces">Design proces</h2>
 <img src="./engine-and-os.png" alt="engine-and-os" />
 <figcaption aria-hidden="true">engine-and-os</figcaption>
 </figure>
+<p>Here is an high level overview of the major classes that are used in
+the engine:</p>
+<figure>
+<img src="./brenta-picture.png" alt="high-level-overview" />
+<figcaption aria-hidden="true">high-level-overview</figcaption>
+</figure>
 <h2 id="subsystems">Subsystems</h2>
 <p>One of the first architectural decision I made was the introduction
 of the <code>Sybsystem</code>. Brenta engine is divided in subsystems,