Squashed '7_1_Servomotor/' changes from a31e39f..97c2a3e

97c2a3e Update readme.md

git-subtree-dir: 7_1_Servomotor
git-subtree-split: 97c2a3e59d5e4d0664ad29c016c8c638bf4acdca
updated subtree 7_1_Servomotor 2013.06.23.19.30