Update README.md

Corrected spelling error 'teach' to 'teacher'.

Author: pickleton89

apps/00_setup/README.md

@@ -1,6 +1,6 @@
 # Setup resources
 
 1. **Install Python**: [python.org/downloads](https://www.python.org/downloads/), choose Python 3. You may already have this installed so verify via `python3 --version` in your terminal or commpand prompt on Windows (may require setting the path in Windows, see the Windows specific setup video later in this chapter).
-2. **PyCharm**: [jetbrains.com/pycharm](https://www.jetbrains.com/pycharm/), You may use the commercial pro edition or the free community edition. The bottom of that page has a feature comparison. There are also free licenses for the pro edition if you are a teach or run an open source project.
+2. **PyCharm**: [jetbrains.com/pycharm](https://www.jetbrains.com/pycharm/), You may use the commercial pro edition or the free community edition. The bottom of that page has a feature comparison. There are also free licenses for the pro edition if you are a teacher or run an open source project.
 3. [Optional] **Sublime text**: [sublimetext.com/3](https://www.sublimetext.com/3) A lightweight editor if you prefer it.
 4. [Optional] **Atom**: [atom.io](https://atom.io/) A lightweight editor if you prefer it.