add notes on switching branch, pushing, pulling and fetching.

README.md

@@ -25,6 +25,18 @@ General Usage
 	# show changes since last commit
 	git diff HEAD
 
+Pushing/Pulling Changes
+-------------------------
+
+	# fetch changes from remote for current branch AND merge them in
+	git pull
+
+	# only fetch changes, do not merge (probably wont be used, but useful to know that git pull = git fetch + git merge in one)
+	git fetch
+
+	# push your changes to remote
+	git push
+
 Branching
 -----------