sed character formatting

src/freedombone-app-pleroma

     # lost during mix compile
     pleroma_secret=$PLEROMA_DIR/config/dev.secret.exs
     if ! grep -q 'watchers: [],' $pleroma_secret; then
-        sed -i 's|watchers: []|watchers: [],|g' $pleroma_secret
+        sed -i 's|watchers: \[\]|watchers: \[\],|g' $pleroma_secret
     fi
     if ! grep -q 'url:' $pleroma_secret; then
         if [[ $ONION_ONLY == 'no' ]]; then
-            sed -i "/watchers: []/a url: [host: \"$PLEROMA_DOMAIN_NAME\", scheme: \"https\", port: 443]" $pleroma_secret
+            sed -i "/watchers: /a url: [host: \"$PLEROMA_DOMAIN_NAME\", scheme: \"https\", port: 443]" $pleroma_secret
         else
-            sed -i "/watchers: []/a url: [host: \"$PLEROMA_ONION_HOSTNAME\", scheme: \"http\", port: 80]" $pleroma_secret
+            sed -i "/watchers: /a url: [host: \"$PLEROMA_ONION_HOSTNAME\", scheme: \"http\", port: 80]" $pleroma_secret
         fi
     fi