Update Dockerfile

Fixed required rosette api version

Author: cp2boston

examples/docker/Dockerfile

@@ -12,9 +12,9 @@ RUN chmod 755 /php/examples/run_php.sh
 WORKDIR /php/examples
 
 # install composer.phar
-RUN curl -sS https://getcomposer.org/installer | php && mv composer.phar /usr/local/bin/composer && composer require "rosette/api: ~0.8.0"
+RUN curl -sS https://getcomposer.org/installer | php && mv composer.phar /usr/local/bin/composer && composer require "rosette/api: ~1.0.0"
 
 # allow interactive bash inside docker container
 CMD ./run_php.sh $API_KEY $ALT_URL; /bin/bash
 
-VOLUME ["/source"]
+VOLUME ["/source"]