placate snap-installed htmlq

snap packages by default don't have access to filesystem.
Not sure how to configure snap to grant that access, so
instead pipe via stdin...

Author: osfameron

scripts/hwc

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-htmlq -t -f $1 article | wc -c
+cat $1 | htmlq -t article | wc -c