Adding some initial examples to the docs (#431)

* # adding some initial examples to the docs

Author: kolibril13

docs/source/examples.rst

@@ -5,3 +5,4 @@ Examples
    :caption: Table of Contents
 
    examples/hello_example
+   examples/plots_examples

docs/source/examples/hello_example.md

@@ -0,0 +1,65 @@
+SomeTestExample
+=================================
+
+.. manim:: DotScene1
+    :quality: low
+    :save_last_frame:
+
+    class DotScene1(Scene):
+        def construct(self):
+            dot = Dot().set_color(GREEN)
+            self.add(dot)
+            self.wait(1)
+
+.. manim:: DotScene2
+    :quality: medium
+    :save_last_frame:
+
+    class DotScene2(Scene):
+        def construct(self):
+            dot = Dot().set_color(YELLOW)
+            self.add(dot)
+            self.wait(1)
+
+.. manim:: DotScene3
+    :quality: high
+    :save_last_frame:
+
+    class DotScene3(Scene):
+        def construct(self):
+            dot = Dot().set_color(GREEN)
+            self.add(dot)
+            self.wait(1)
+
+.. manim:: DotScene4
+    :quality: low
+
+    class DotScene4(Scene):
+        def construct(self):
+            dot = Dot().set_color(GREEN).scale(3)
+            self.add(dot)
+            sq = Square()
+            self.play(Transform(dot,sq))
+            self.wait(1)
+
+.. manim:: DotScene5
+    :quality: medium
+
+    class DotScene5(Scene):
+        def construct(self):
+            dot = Dot().set_color(YELLOW).scale(3)
+            self.add(dot)
+            sq = Square()
+            self.play(Transform(dot,sq))
+            self.wait(1)
+
+.. manim:: DotScene6
+    :quality: high
+
+    class DotScene6(Scene):
+        def construct(self):
+            dot = Dot().set_color(RED).scale(3)
+            self.add(dot)
+            sq = Square()
+            self.play(Transform(dot,sq))
+            self.wait(1)

docs/source/examples/hello_example.rst

@@ -0,0 +1,14 @@
+Plotting with manim
+=================================
+
+.. manim:: ParamFunc1
+    :quality: medium
+    :save_last_frame:
+
+    class ParamFunc1(Scene):
+       def func(self,t):
+           return np.array((np.sin(2*t), np.sin(3*t),0))
+       def construct(self):
+           func=ParametricFunction(self.func, t_max=TAU, fill_opacity=0).set_color(RED)
+           self.add(func.scale(3))
+