add safety settings examples for curl (#433)

* add safety settings examples for curl

* replace integers with category name

Author: shilpakancharla

samples/rest/safety_settings.sh

@@ -0,0 +1,38 @@
+set -eu
+
+echo "[START safety_settings]"
+# [START safety_settings]
+echo '{
+    "safetySettings": [
+        {'category': HARM_CATEGORY_HARASSMENT, 'threshold': BLOCK_ONLY_HIGH}
+    ],
+    "contents": [{
+        "parts":[{
+            "text": "'I support Martians Soccer Club and I think Jupiterians Football Club sucks! Write a ironic phrase about them.'"}]}]}' > request.json
+    
+    curl "https://generativelanguage.googleapis.com/v1beta/models/gemini-pro:generateContent?key=$GOOGLE_API_KEY" \
+        -H 'Content-Type: application/json' \
+        -X POST \
+        -d @request.json  2> /dev/null > tee response.json
+
+    jq .promptFeedback > response.json
+# [END safety_settings]
+
+echo "[START safety_settings_multi]"
+# [START safety_settings_multi]
+echo '{
+    "safetySettings": [
+        {'category': HARM_CATEGORY_HARASSMENT, 'threshold': BLOCK_ONLY_HIGH},
+        {'category': HARM_CATEGORY_HATE_SPEECH, 'threshold': BLOCK_MEDIUM_AND_ABOVE}
+    ],
+    "contents": [{
+        "parts":[{
+            "text": "'I support Martians Soccer Club and I think Jupiterians Football Club sucks! Write a ironic phrase about them.'"}]}]}' > request.json
+
+    curl "https://generativelanguage.googleapis.com/v1beta/models/gemini-pro:generateContent?key=$GOOGLE_API_KEY" \
+        -H 'Content-Type: application/json' \
+        -X POST \
+        -d @request.json  2> /dev/null > response.json
+
+    jq .promptFeedback > response.json
+# [END safety_settings_multi]