Update charts with time and acceleration
Update documentation to 1st assignment
Update code snippet
Change display time from sec to ms
Add short description to code snippet
Change time from sec to ms
Add comment how to run thread safe operations
Update zad3 thread-safety
Update documentations zad3, zad4
Update zad4 thread-safety
Correct improper conclusions made in zad7
Add missing pictures
Fix mistakes in zad5 code

* swap the order of thread count and matrix size params,
* correctly initialize dim3 structs for CUDA kernel invoke,
* make the time-calculating function name clearer by specifying units
Merge branch 'dev' of https://github.com/M4GiK/prir-laboratories into dev
Update documentation to zad5