Create README.md

Signed-off-by: David Rotermund <54365609+davrot@users.noreply.github.com>

python_basics/for/README.md

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+# Flow Control for-loop
+{:.no_toc}
+
+<nav markdown="1" class="toc-class">
+* TOC
+{:toc}
+</nav>
+
+## The goal
+
+For what reason...
+
+Questions to [David Rotermund](mailto:davrot@uni-bremen.de)
+
+**Logic blocks need to be indented.​ Preferable with 4 spaces!**
+
+## [The for statement](https://docs.python.org/3/reference/compound_stmts.html#the-for-statement)
+
+> The for statement is used to iterate over the elements of a sequence (such as a string, tuple or list) or other iterable object
+
+### With range()
+
+```python
+for i in range(0, 3):​
+    print(i)​
+```
+
+Output:
+
+```python
+0​
+1​
+2
+```
+
+### [range()](https://docs.python.org/3/library/stdtypes.html#ranges)
+
+```python
+class range(stop)
+class range(start, stop[, step])
+```
+
+### With a list
+
+```python
+for i in [0, "A", 7, "nom num"]:​
+    print(i)
+```
+
+Output:
+
+```python
+0​
+A​
+7​
+nom num​
+```
+
+
+## The full statement
+
+```python
+for_stmt ::=  "for" target_list "in" starred_list ":" suite
+              ["else" ":" suite]
+```
+
+## for loop (enumerate)​
+
+XXXXXXXXX
+
+## for loop (the truth)​
+
+{: .topic-optional}
+This is an optional topic!
+
+The for loop is not counting up itself. It uses the \_\_iter\_\_ & \_\_next\_\_ combo of a instance of a class or a generator via [yield](https://docs.python.org/3/reference/simple_stmts.html#the-yield-statement).
+
+XXXXXXXXX
+
+