docs: updating minikube and crc installation guides

Signed-off-by: Ilya Buziuk <ibuziuk@redhat.com>

modules/administration-guide/pages/installing-che-on-minikube.adoc

@@ -18,6 +18,4 @@ include::partial$proc_using-minikube-to-set-up-kubernetes.adoc[leveloffset=+1]
 
 include::partial$proc_installing-che-on-minikube-using-chectl.adoc[leveloffset=+1]
 
-include::partial$proc_using-minikube-and-lxc.adoc[leveloffset=+1]
-
 :context: {parent-context-of-installing-che-on-minikube}

modules/administration-guide/partials/proc_using-chectl-to-install-che-on-codeready-containers.adoc

@@ -15,18 +15,18 @@ This section describes how to install {prod-short} on CodeReady Containers (CRC)
 
 .Procedure
 
-. Initiate the CRC platform:
-
-.. Configure your host machine for CodeReady Containers:
+.. Remove any previous cluster:
 +
 ----
-$ crc setup
+$ crc delete && rm -rf .crc
 ----
 
-.. Remove any previous cluster:
+. Initiate the CRC platform:
+
+.. Configure your host machine for CodeReady Containers:
 +
 ----
-$ crc delete
+$ crc setup
 ----
 
 .. Initiate the `oc` command line interface within CRC: 

modules/administration-guide/partials/proc_using-minikube-to-set-up-kubernetes.adoc

@@ -14,8 +14,8 @@ This section describes how to use Minikube to prepare a local single-node {kuber
 
 .Procedure
 
-. Start Minikube (it is important to *allocate at least 4GB of RAM but 8GB are recommended*):
+. Start Minikube (it is important to allocate at least 8GB of RAM and 4 CPU cores):
 +
 ----
-$ minikube start --addons=ingress --vm=true --memory=8192
+$ minikube start --addons=ingress --vm=true --memory=8192 --cpus=4
 ----