Add trademark notice to the docs footer.
Add trademark notice to the docs footer.

apache/libcloud,erjohnso/libcloud,Kami/libcloud,erjohnso/libcloud,mistio/libcloud,apache/libcloud,pquentin/libcloud,pquentin/libcloud,ZuluPro/libcloud,vongazman/libcloud,vongazman/libcloud,andrewsomething/libcloud,apache/libcloud,ZuluPro/libcloud,StackPointCloud/libcloud,ByteInternet/libcloud,mistio/libcloud,vongazman/libcloud,Scalr/libcloud,Kami/libcloud,ByteInternet/libcloud,ZuluPro/libcloud,StackPointCloud/libcloud,pquentin/libcloud,andrewsomething/libcloud,StackPointCloud/libcloud,Scalr/libcloud,Kami/libcloud,erjohnso/libcloud,Scalr/libcloud,mistio/libcloud,andrewsomething/libcloud,ByteInternet/libcloud