Corrected spelling in introduction section
spelling change in general remarks section
Used incorrect instead of wrong as I think that it is important to emphasise that most things aren't wrong per se.
pathes -> paths
 # Please enter the commit message for your changes. Lines starting
 # with '#' will be ignored, and an empty message aborts the commit.
 # On branch correctspelling
 # Changes to be committed:
 #   (use "git reset HEAD <file>..." to unstage)
 #
 #	modified:   introduction.rst
 #
 # Untracked files:
 #   (use "git add <file>..." to include in what will be committed)
 #
 #	.introduction.rst.swp
Added a notes file to version control, to keep track of issues that need dealing with.
Edited exercise one to use gender neutral text.
previos -> previous
Added a gitignore file - to ignore built sphinx files.
Added a link between STEP1 and the help section in the intro.
Improved instructions in STEP1 (i.e. added explanations for WHY).
Deleted built sphinx files.
Merge branch 'master' of https://github.com/gkerr/IntroCommandLineNGS into step1

Conflicts:
	exercises/STEP1_QualityControl.rst
	exercises/introduction.rst

Think that this merge is ok now.
Minor formatting changes.