Update TODO.md

The PR includes only updates for the Markdown markup. (No changes on content!)
fix ZF2012-05 title
Merge branch 'hotfix/110'

Close #110
#107 - Add CSS styles for functions and methods in docs
Removed zendcon banner from homepage

- Early bird pricing is over
Merge branch 'hotfix/zendcon-banner-removal'
Merge branch 'hotfix/zendcon-banner-removal' into develop
Added ZendCon promo
Merge branch 'hotfix/zendcon-promo-august'
Merge branch 'hotfix/zendcon-promo-august' into develop
Fix for #94 - Add select list for topics in docs

The current solution includes only a select list for ZF2 docs.
Remove issue attachment that had sensitive data
Merge branch 'hotfix/sensitive-attachment'
Merge branch 'hotfix/sensitive-attachment' into develop
Merge pull request #115 from froschdesign/feature/doc-select-list

Fix for #94 - Add select list for topics in docs
Merge branch 'hotfix/94'

Close #94
Close #115
Merge branch 'hotfix/94' into develop

Forward port #115
Merge pull request #103 from froschdesign/patch-2

Update TODO.md
Merge branch 'hotfix/103'

Close #103
Merge branch 'hotfix/103' into develop

Forward port #103