Typos in descriptions for projects 18224, 18225, and 18226

[arisu]

Not a big deal but I figured I'd report it anyway. All three project descriptions are the same and thus have the same typos.

While the biochemical activity of PGK has been long understoon,

understoon -> understood

with one of it's products (ADP) bound

it's -> its

with one of it's substrates (ATP) bound

it's -> its

the conversion of 1,3 bisphosphoglycerate to 3-phosphoglycerate

1,3 bisphosphoglycerate -> 1,3-bisphosphoglycerate

[jjmiller]

Thanks!