Fixed documentation for cache order

Author: Michel Casabianca

README.md

@@ -94,47 +94,47 @@ Note that without API key, you will be limited to *10* requests in a rolling *60
 
 A cache is useful because if you perform more call to NVD database that allowed, your calls will significantly slow down. Gobinsec tries to build caches in this order:
 
-### Memcachier
+### Memcached
 
-A cache is built with *Memcachier* if following section is found in configuration file:
+If no configuration is found for *Memcachier*, it will try to build a cache for *Memcached*, if following section is found in configuration file:
 
 ```yaml
-memcachier:
+memcached:
   address:    ...
   expiration: ...
-  username:   ...
-  password:   ...
 ```
 
-Else, il will look for following environment variables:
+Else it will look for following environment variables:
 
 ```
-MEMCACHIER_ADDRESS
-MEMCACHIER_EXPIRATION
-MEMCACHIER_USERNAME
-MEMCACHIER_PASSWORD
+MEMCACHED_ADDRESS
+MEMCACHED_EXPIRATION
 ```
 
-[Memcachier](https://www.memcachier.com) is an online cache provider with free tiers.
+A sample [docker-compose.yml](https://github.com/intercloud/gobinsec/blob/main/docker-compose.yml) file to start a *memcached* instance is provided in this project.
 
-### Memcached
+### Memcachier
 
-If no configuration is found for *Memcachier*, it will try to build a cache for *Memcached*, if following section is found in configuration file:
+A cache is built with *Memcachier* if following section is found in configuration file:
 
 ```yaml
-memcached:
+memcachier:
   address:    ...
   expiration: ...
+  username:   ...
+  password:   ...
 ```
 
-Else it will look for following environment variables:
+Else, il will look for following environment variables:
 
 ```
-MEMCACHED_ADDRESS
-MEMCACHED_EXPIRATION
+MEMCACHIER_ADDRESS
+MEMCACHIER_EXPIRATION
+MEMCACHIER_USERNAME
+MEMCACHIER_PASSWORD
 ```
 
-A sample [docker-compose.yml](https://github.com/intercloud/gobinsec/blob/main/docker-compose.yml) file to start a *memcached* instance is provided in this project.
+[Memcachier](https://www.memcachier.com) is an online cache provider with free tiers.
 
 ### Memory