Add .gitignore and README for control structures

f7f15f1c · Erik Strand · 0ed71eeb · f7f15f1c · f7f15f1c · f7f15f1c
Commit f7f15f1c authored Oct 21, 2020 by Erik Strand
--- a/02_control_structures/.gitignore
+++ b/02_control_structures/.gitignore
+loops
+functions
--- a/02_control_structures/README.md
+++ b/02_control_structures/README.md
+# Control Structures
+
+These examples demonstrate loops and functions.
--- a/README.md
+++ b/README.md
@@ -49,3 +49,4 @@ On Windows... honestly I'm not sure. I haven't set up a development environment
 ## Examples

 - [hello world](./01_hello_world)
+- [control structures](./02_control_structures)