Fix a couple of typos in the bundled examples.

examples/async-curl/src/http.c

@@ -122,7 +122,7 @@ state_result(struct http_request *req)
 		 */
 		kore_curl_response_as_bytes(client, &body, &len);
 
-		/* We could check the existance of a header: */
+		/* We could check the existence of a header: */
 		if (kore_curl_http_get_header(client, "server", &header))
 			printf("got server header: '%s'\n", header);
 

examples/nohttp/src/nohttp.c

@@ -59,7 +59,7 @@ connection_setup(struct connection *c)
  * net_send_flush() or net_recv_flush() if KORE_EVENT_WRITE or
  * KORE_EVENT_READ are set respectively in c->evt.flags.
  * Returning KORE_RESULT_ERROR from this callback will disconnect the
- * connection alltogether.
+ * connection altogether.
  */
 int
 connection_handle(struct connection *c)

examples/pgsql-sync/src/pgsql-sync.c

@@ -64,7 +64,7 @@ page(struct http_request *req)
 
 	/*
 	 * Now we can fire off the query, once it returns we either have
-	 * a result on which we can operate or an error occured.
+	 * a result on which we can operate or an error occurred.
 	 */
 	if (!kore_pgsql_query(&sql, "SELECT * FROM coders")) {
 		kore_pgsql_logerror(&sql);