Fix liquid syntax errors. (#7785) (#7796)

_api-reference/render-template.md

@@ -44,7 +44,7 @@ Both of the following request examples use the search template with the template
   "source": {
     "query": {
       "match": {
-        "play_name": "{{play_name}}"
+        "play_name": "{% raw %}{{play_name}}{% endraw %}"
       }
     }
   },
@@ -76,11 +76,11 @@ If you don't want to use a saved template, or want to test a template before sav
 ```
 {
   "source": {
-    "from": "{{from}}{{^from}}10{{/from}}",
-    "size": "{{size}}{{^size}}10{{/size}}",
+     "from": "{% raw %}{{from}}{{^from}}0{{/from}}{% endraw %}",
+     "size": "{% raw %}{{size}}{{^size}}10{{/size}}{% endraw %}",
     "query": {
       "match": {
-        "play_name": "{{play_name}}"
+        "play_name": "{% raw %}{{play_name}}{% endraw %}"
       }
     }
   },