Updated the documentation system to find more files. Please let me know if this is buggy.

audiogame-manager.sh

@@ -446,13 +446,14 @@ documentation() {
     fi
     if ! command -v w3m &> /dev/null ; then
         echo "This feature of audiogame-manager requires w3m. Please install it before continuing."
+        exit 1
     fi
     get_bottle "$1"
 echo "Loading documentation, please wait..."
     # Try to find documentation based on common naming conventions.
     local gamePath="$(winepath -u "$2" 2> /dev/null)"
     gamePath="${gamePath%/*}"
-    local gameDoc="$(find "$gamePath" -type f -iname 'user_manual.html' -or -iname 'user_manual.htm' | head -1)"
+    local gameDoc="$(find "$gamePath" -type f -iname 'user_manual.htm*' -or -iname 'user manual.htm*' -or -iname '*user guide.htm*' | head -1)"
     # Game name specific docs, add the name to the for loop.
     if [[ -z "$gameDoc" ]]; then
         for i in "troopanum.txt" "superdeekout.txt" scw.html ; do