Changed links from the main branch to the noetic branch.

example_6.md

@@ -280,7 +280,7 @@ A conditional statement is used to export the data to a .txt file. The file's na
   <img src="stored_data/2022-06-30_11:26:20-AM.png"/>
 </p>
 
-We added a simple python script, [stored_data_plotter.py](https://github.com/hello-robot/stretch_tutorials/blob/main/src/stored_data_plotter.py), to this package for plotting the stored data. **Note** you have to change the name of the file you wish to see in the python script. This is shown below:
+We added a simple python script, [stored_data_plotter.py](https://github.com/hello-robot/stretch_tutorials/blob/noetic/src/stored_data_plotter.py), to this package for plotting the stored data. **Note** you have to change the name of the file you wish to see in the python script. This is shown below:
 
 ```Python
 ####################### Copy the file name here! #######################

example_9.md

@@ -260,12 +260,12 @@ if __name__ == '__main__':
 ```
 
 ### The Code Explained
-This code is similar to that of the [multipoint_command](https://github.com/hello-robot/stretch_tutorials/blob/main/src/multipoint_command.py) and [joint_state_printer](https://github.com/hello-robot/stretch_tutorials/blob/main/src/joint_state_printer.py) node. Therefore, this example will highlight sections that are different from those tutorials. Now let's break the code down.
+This code is similar to that of the [multipoint_command](https://github.com/hello-robot/stretch_tutorials/blob/noetic/src/multipoint_command.py) and [joint_state_printer](https://github.com/hello-robot/stretch_tutorials/blob/noetic/src/joint_state_printer.py) node. Therefore, this example will highlight sections that are different from those tutorials. Now let's break the code down.
 
 ```python
 #!/usr/bin/env python3
 ```
-Every Python ROS [Node](http://wiki.ros.org/Nodes) will have this declaration at the top. The first line makes sure your script is executed as a Python script.
+Every Python ROS [Node](http://wiki.ros.org/Nodes) will have this declaration at the top. The first line makes sure your script is executed as a Python3 script.
 
 ```python
 import math