Fix typo stored -> store
Add about link to 4.1.2 template listing

This link "magically appears" in the template listing in section 4.3.
Add missing whitespace
Insert linebreak
Move misplaced `
Insert missing space
Remove 'how to'

Or should it be 'how to use?'
used -> use
thet -> that
Fix bug in hint 10.9.1 resulting in KeyError
Merge pull request #6 from sjktje/typofixes

Fix typos (spotted by @sjktje)