update definition of "relationship to oxygen"

[only1chunts]

Current term details
Please supply the current details of the term that you would like to update:

Term name - relationship to oxygen 
Term ID - MIXS:0000015
Structured comment name - rel_to_oxygen 
Definition - Is this organism an aerobe, anaerobe? Please note that aerobic and anaerobic are valid descriptors for microbial environments
Expected value - enumeration 
Value syntax - [aerobe\|anaerobe\|facultative\|microaerophilic\|microanaerobe\|obligate aerobe\|obligate anaerobe]
Example - aerobe 
Preferred unit - 
Package(s) - 

Suggested update(s)
clarify in the definition, that this about the sample, not the organism, move to packages

Additional context
raised in v6 review, missed cut-off.