Fix unintended scrolling in table of contents.
Fix unintended scrolling in table of contents.

google/codeworld,google/codeworld,google/codeworld,three/codeworld,stefan-j/codeworld,parvmor/codeworld,alphalambda/codeworld,parvmor/codeworld,stefan-j/codeworld,pranjaltale16/codeworld,venkat24/codeworld,stefan-j/codeworld,parvmor/codeworld,alphalambda/codeworld,three/codeworld,pranjaltale16/codeworld,venkat24/codeworld,alphalambda/codeworld,three/codeworld,tgdavies/codeworld,nomeata/codeworld,tgdavies/codeworld,nomeata/codeworld,nomeata/codeworld,tgdavies/codeworld,pranjaltale16/codeworld,venkat24/codeworld