chore(docs): update readme

Author: aleclarson

README.md

@@ -30,6 +30,8 @@ Supported features include:
 
 Contributions welcome! Only the commands I've needed so far are implemented.
 
+- [BZPOPMAX](https://redis.io/docs/latest/commands/BZPOPMAX/)
+- [BZPOPMIN](https://redis.io/docs/latest/commands/BZPOPMIN/)
 - [DECR](https://redis.io/docs/latest/commands/DECR/)
 - [DECRBY](https://redis.io/docs/latest/commands/DECRBY/)
 - [DEL](https://redis.io/docs/latest/commands/DEL/)
@@ -64,6 +66,8 @@ Contributions welcome! Only the commands I've needed so far are implemented.
 - [XGROUP.CREATE](https://redis.io/docs/latest/commands/XGROUP.CREATE/)
 - [XREAD](https://redis.io/docs/latest/commands/XREAD/)
 - [XREADGROUP](https://redis.io/docs/latest/commands/XREADGROUP/)
+- [ZADD](https://redis.io/docs/latest/commands/ZADD/)
+- [ZREM](https://redis.io/docs/latest/commands/ZREM/)
 
 ## Thanks