Merge pull request #8 from chmullig/master

Remove git content from recitation 4
Added :x shortcut to vim shortcuts.
Merge pull request #9 from serenasimkus/master

Added :x shortcut to vim shortcuts.
added examples of string function usage
fixed typo
clarified *s description
Merge pull request #10 from mvk123/master

added examples of string function usage
Merge pull request #11 from chmullig/master

Git additions; Recitation 4 - valgrind
Merge pull request #12 from chmullig/master

pointerfun.c - a thorough exploration of pointers, function pointers, and memory addresses.
Updated recitation 5
added ls -al + lab 4 info
Merge pull request #15 from mvk123/master

added ls -al + lab 4 info