fix license

LICENSE.txt

@@ -14,7 +14,7 @@ met:
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
     distribution.
- 3. Neither the name of scikit-fmm nor the names of its
+ 3. Neither the name of enstools-feature nor the names of its
     contributors may be used to endorse or promote products derived
     from this software without specific prior written permission.