fix: typos

Signed-off-by: guoguangwu <guoguangwug@gmail.com>

README.md

@@ -158,7 +158,7 @@ The values are not stored in the `redisContext`, so they are not automatically a
 These functions return `REDIS_OK` on success.
 On failure, `REDIS_ERR` is returned and the underlying connection is closed.
 
-To configure these for an asyncronous context (see *Asynchronous API* below), use `ac->c` to get the redisContext out of an asyncRedisContext.
+To configure these for an asynchronous context (see *Asynchronous API* below), use `ac->c` to get the redisContext out of an asyncRedisContext.
 
 ```C
 int redisEnableKeepAlive(redisContext *c);

test.c

@@ -156,7 +156,7 @@ static redisContext *select_database(redisContext *c) {
     assert(reply != NULL);
     freeReplyObject(reply);
 
-    /* Make sure the DB is emtpy */
+    /* Make sure the DB is empty */
     reply = redisCommand(c,"DBSIZE");
     assert(reply != NULL);
     if (reply->type == REDIS_REPLY_INTEGER && reply->integer == 0) {
@@ -2298,7 +2298,7 @@ static void test_async_polling(struct config config) {
      */
     test("Ping/Pong from onConnected callback (Issue #931): ");
     c = do_aconnect(config, ASTEST_ISSUE_931_PING);
-    /* connect callback issues ping, reponse callback destroys context */
+    /* connect callback issues ping, response callback destroys context */
     while(astest.ac)
         redisPollTick(c, 0.1);
     assert(astest.connected == 0);