Delete a reference to the "node.kubernetes.io/out-of-disk" taint, which
Kubernetes 1.14 deleted (commit 8f87e71e0cc3a2b714291ecd7210dfd8f4de33d6).
Document that the DaemonSet controller adds a toleration for the
"node.kubernetes.io/pid-pressure" taint since Kubernetes 1.14 (commit
ad6e3617d3e92f47fa0874ca258ffe31d1d2ff4c).
* content/en/docs/concepts/scheduling-eviction/taint-and-toleration.md:
Delete references to "node.kubernetes.io/out-of-disk" and document that the
DaemonSet adds a toleration for "node.kubernetes.io/pid-pressure".
* Moved "Assigning Pods to Nodes" article to Concepts -> Scheduling and Eviction
* Moved "Taints and Tolerations" article to Concepts -> Scheduling and Eviction
* Updated weight of the "Kubernetes Scheduler" article so it appears first
* Updated redirects
* Replaced links to "Assigning Pods to Nodes" and "Taints and Tolerations" articles
to avoid redirects.
Signed-off-by: Adam Kaplan <adam.kaplan@redhat.com>