Typo on the InsuranceStrategy wiki page
I noticed a typo on the [InsuranceStrategy wiki page](https://github.com/animir/node-rate-limiter-flexible/wiki/Insurance-Strategy)

RedisLimiterMemory -> RateLimiterMemory

On line 2, instead of:

`const { RateLimiterRedis, RedisLimiterMemory } = require('rate-limiter-flexible');`

It should be:

`const { RateLimiterRedis, RateLimiterMemory } = require('rate-limiter-flexible');`