Update 'Analog Clock'

Analog-Clock.md

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+Let's build an analog clock that shows three hands: A second, minute, and hour hand that dynamically update!
+
+Most analog clocks are circles, so we will use the `DrawCircle()` function to render one. Let's start with a basic OLC project template:
+
+```cpp
+#define OLC_PGE_APPLICATION
+#include "olcPixelGameEngine.h"
+
+// Override base class with your custom functionality
+class AnalogClock : public olc::PixelGameEngine
+{
+public:
+    AnalogClock()
+    {
+        // Name your application
+        sAppName = "Analog Clock";
+    }
+    
+public:
+    bool OnUserCreate() override
+    {
+        return true;
+    }
+    
+    bool OnUserUpdate(float fElapsedTime) override
+    {
+        return true;
+    }
+};
+
+int main()
+{
+    AnalogClock demo;
+    if (demo.Construct(256, 240, 2, 2))
+        demo.Start();
+    return 0;
+}
+```
+
+Start by clearing the screen each frame and then drawing a circle with a white outline in the center of the screen. Position defines the center of the circle. Let's make the radius of the circle `100` pixels.
+
+We will do this in `OnUserUpdate()`:
+```cpp    
+    bool OnUserUpdate(float fElapsedTime) override
+    {
+        Clear(olc::VERY_DARK_GREEN);
+
+        DrawCircle(GetScreenSize()/2,100);
+        return true;
+    }
+```
+[[***Try it out!***]](https://pgetinker.com/s/9PzMu2bRS6b)