lower CPU request and update docs

docs/reference/cluster_manifest.md

@@ -385,8 +385,8 @@ present.
   Which docker image to use for connection pool deployment.
 
 * **maxDBConnections**
-  How many connections the pooler can max hold. This value is divided by the
-  number of pooler pods.
+  How many connections the pooler can max hold. This value is divided among the
+  pooler pods.
 
 * **mode**
   In which mode to run connection pool, transaction or session.

docs/reference/operator_parameters.md

@@ -619,9 +619,9 @@ operator being able to provide some reasonable defaults.
   Default: "registry.opensource.zalan.do/acid/pgbouncer"
 
 * **connection_pool_max_db_connections**
-  How many connections the pooler can max hold. This value is divided by the
-  number of pooler pods. Default is 60 which will make up 30 connections per
-  pod for the default setup with two instances.
+  How many connections the pooler can max hold. This value is divided among the
+  pooler pods. Default is 60 which will make up 30 connections per pod for the
+  default setup with two instances.
 
 * **connection_pool_mode**
   Default pool mode, `session` or `transaction`. Default is `transaction`.
@@ -631,4 +631,4 @@ operator being able to provide some reasonable defaults.
   **connection_pool_default_cpu_limit**
   **connection_pool_default_memory_limit**
   Default resource configuration for connection pool deployment. The internal
-  default for memory limit and request is `100Mi`, for CPU it is `1`.
+  default for memory request and limit is `100Mi`, for CPU it is `500m` and `1`.

docs/user.md

@@ -535,7 +535,7 @@ To configure a new connection pool, specify:
 spec:
   connectionPool:
     # how many instances of connection pool to create
-    number_of_instances: 1
+    number_of_instances: 2
 
     # in which mode to run, session or transaction
     mode: "transaction"
@@ -550,11 +550,11 @@ spec:
     # resources for each instance
     resources:
       requests:
-        cpu: "100m"
-        memory: "100Mi"
+        cpu: 500m
+        memory: 100Mi
       limits:
-        cpu: "100m"
-        memory: "100Mi"
+        cpu: "1"
+        memory: 100Mi
 ```
 
 By default `pgbouncer` is used to create a connection pool. To find out about