fix: 完善安装文档

Author: ramwin

redis/redis.md

@@ -20,9 +20,11 @@ r.get("foo")  # 不存在default
 ```bash
 cd ~
 wget https://download.redis.io/redis-stable.tar.gz
-tar xzf redis-table.tar.gz
-cd redis-table
-make
+tar xzf redis-stable.tar.gz
+rm redis-stable.tar.gz
+cd redis-stable
+sudo apt install gcc make
+make -j12
 echo 'vm.overcommit_memory = 1' >> /etc/sysctl.conf  # 要用管理员权限
 sudo sysctl vm.overcommit_memory=1
 ```