Updated reference to docker image

Former-commit-id: 6d585fed76

README.md

@@ -38,7 +38,7 @@ docker run -it --rm \
     -v "$(pwd)/images:/code/images" \
     -v "$(pwd)/odm_orthophoto:/code/odm_orthophoto" \
     -v "$(pwd)/odm_texturing:/code/odm_texturing" \
-    opendronemap/opendronemap
+    opendronemap/odm
 ```
 
 ### Native Install (Ubuntu 16.04)