update drone.yml

drone.yml

     MAKEFLAGS: -j 4
     MAKEDIRS: src          src/contrib
     BINARIES: src/radangel src/contrib/websockify
+    ARCHIVE:  radangel-release
+    RELEASE:  src/radangel src/contrib/websockify config html service
   commands:
     - | 
       cat >> /etc/apt/apt.conf.d/01-proxy <<-EOF
         Acquire::https { Proxy "https://"; };
       EOF
     - apt-get update && apt-get --yes upgrade
-    - apt-get --yes install ${BUILDDEPS}
+    - apt-get --yes install $BUILDDEPS
     - export MAKEFLAGS
-    - for DIR in ${MAKEDIRS}; do make -C ${DIR} ; done
-    - ls -l  ${BINARIES} && md5sum $BINARIES
-    - tar -czvf radangel-release.tar.gz ${BINARIES} html service
+    - for DIR in $MAKEDIRS; do make -C $DIR ; done
+    - tar -czvf $ARCHIVE.tar.gz $RELEASE
+    - ls -l  $ARCHIVE.tar.gz $BINARIES && md5sum $ARCHIVE.tar.gz $BINARIES
   when:
     event: [ push, tag ]
 
       from_secret: gitea-release
     base_url: https://git.unino.de
     files:
-      - radangel-release.tar.gz
       - CHANGELOG.md
       - README.md
       - src/radangel
       - src/contrib/websockify
+      - radangel-release.tar.gz
   when:
     event: tag