Release Camel K 1.5.0 (#599)

* Release Camel K 1.5.0

* Add camel k runtime 1.8.0
diff --git a/content/releases/k-runtime/release-1.8.0.md b/content/releases/k-runtime/release-1.8.0.md
new file mode 100644
index 0000000..f08e638
--- /dev/null
+++ b/content/releases/k-runtime/release-1.8.0.md
@@ -0,0 +1,11 @@
+---
+url: "/releases/k-runtime-1.8.0/"
+date: 2021-07-09
+type: release-note
+version: "1.8.0"
+title: "Camel-K Runtime release 1.8.0"
+preview: ""
+changelog: ""
+category: "camel-k-runtime"
+milestone: 12
+---
diff --git a/content/releases/k/release-1.5.0.md b/content/releases/k/release-1.5.0.md
new file mode 100644
index 0000000..16d4839
--- /dev/null
+++ b/content/releases/k/release-1.5.0.md
@@ -0,0 +1,11 @@
+---
+url: "/releases/k-1.5.0/"
+date: 2021-07-09
+type: release-note
+version: "1.5.0"
+title: "Camel-K 1.5.0"
+preview: ""
+changelog: ""
+category: "camel-k"
+milestone: 21
+---