add example of re-act pattern (#583)

* add example of re-act pattern

* spelling...

* fixed whitespace in reverse prompt issue

examples/reason-act.sh

@@ -0,0 +1,17 @@
+
+#!/bin/bash
+
+cd `dirname $0`
+cd ..
+
+# get -m model parameter otherwise defer to default
+if [ "$1" == "-m" ]; then
+  MODEL="-m $2 "
+fi
+
+./main $MODEL --color \
+    -f ./prompts/reason-act.txt \
+    -i --interactive-first \
+    --top_k 10000 --temp 0.2 --repeat_penalty 1 -t 7 -c 2048 \
+    -r "Question:" -r "Observation:" --in-prefix " " \
+    -n -1