fix typo in docker build command

Former-commit-id: 36a79c29c2

README.md

@@ -133,7 +133,7 @@ If you want to build your own Docker image from sources, type:
     docker build -t packages -f packages.Dockerfile .
 
     docker build -t my_odm_image .
-    docker run -it --rm -v $(pwd)/images:/code/images v $(pwd)/odm_orthophoto:/code/odm_orthophoto -v $(pwd)/odm_texturing:/code/odm_texturing my_odm_image
+    docker run -it --rm -v $(pwd)/images:/code/images -v $(pwd)/odm_orthophoto:/code/odm_orthophoto -v $(pwd)/odm_texturing:/code/odm_texturing my_odm_image
 
 Using this method, the containerized ODM will process the images in the OpenDroneMap/images directory and output results
 to the OpenDroneMap/odm_orthophoto and OpenDroneMap/odm_texturing directories as described in the **Viewing Results** section.