having discriptive information about the agency or organization for a position within the positions module is redundant and confilcts with program structure, design. Move to config/ yaml.

[brl1906]

1. go to positions.py module
2. identify the about_org variable in the Position class
3. rename the attribute to organization_background
4. refactor the class to remove the organization stuff and put it into the positon_daya.yaml file.

[brl1906]

done