Update range.md with Examples

I gave more examples for the range built-in function. I do not think that this is complete and will add more when I can but I wanted to add at least a few more examples to allow developers to see it in use.

Author: johntheholman

docs/builtin/range.md

@@ -28,6 +28,72 @@ Python range() built-in function
 # 4
 ```
 
+```python
+>>> for i in range(1,8):
+...     print(i)
+# 1
+# 2
+# 3
+# 4
+# 5
+# 6
+# 7
+```
+
+```python
+>>> for i in range(0,30,5):
+...     print(i)
+# 0
+# 5
+# 10
+# 15
+# 20
+# 25
+```
+
+```python
+>>> for i in range(0,10,3):
+...     print(i)
+# 0
+# 3
+# 6
+# 9
+```
+
+```python
+>>> for i in range(0,-6,-1):
+...     print(i)
+# 0
+# -1
+# -2
+# -3
+# -4
+# -5
+```
+
+```python
+>>> for i in range(0,-6,-1):
+...     print(i)
+# 0
+# -1
+# -2
+# -3
+# -4
+# -5
+```
+
+```python
+>>> for i in range(0):
+...     print(i)
+# 
+```
+
+```python
+>>> for i in range(1,0):
+...     print(i)
+# 
+```
+
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