docs: Fix some typos in gdata-sections.txt
docs: Fix some typos in gdata-sections.txt

They were breaking the documentation for GDataOAuth1Authorizer.

Pecisk/libgdata,Pecisk/libgdata,Pecisk/libgdata-gtasks,GNOME/libgdata,Pecisk/libgdata-gtasks,Distrotech/libgdata,Distrotech/libgdata,Pecisk/libgdata-gtasks,Distrotech/libgdata,pwithnall/libgdata,pwithnall/libgdata,Pecisk/libgdata