Correct documentation for skip_schema_queries

Thanks to #432

README.md

@@ -345,7 +345,7 @@ Option|Default|Description
 pre_authorize_cb|Rails: dev only<br>Rack: always on|A lambda callback that returns true to make mini_profiler visible on a given request.
 position|`'top-left'`|Display mini_profiler on `'top-right'`, `'top-left'`, `'bottom-right'` or `'bottom-left'`.
 skip_paths|`[]`|Paths that skip profiling.
-skip_schema_queries|Rails dev: `'true'`<br>Othwerwise: `'false'`|`'true'` to log schema queries.
+skip_schema_queries|Rails dev: `true`<br>Othwerwise: `false`|`true` to skip schema queries.
 auto_inject|`true`|`true` to inject the miniprofiler script in the page.
 backtrace_ignores|`[]`|Regexes of lines to be removed from backtraces.
 backtrace_includes|Rails: `[/^\/?(app\|config\|lib\|test)/]`<br>Rack: `[]`|Regexes of lines to keep in backtraces.