adding tags and categories

_data/categories.yml

@@ -0,0 +1,19 @@
+- slug: general
+  name: General
+  color: '#3498db'
+
+- slug: conference
+  name: Conference
+  color: '#1abc9c'
+
+- slug: howto
+  name: Howto
+  color: '#1abc9c'
+
+- slug: api
+  name: API
+  color: '#1abc9c'
+
+- slug: product
+  name: Product
+  color: '#1abc9c'

_data/tags.yml

@@ -0,0 +1,35 @@
+- slug: security
+  name: Security
+
+- slug: cloud
+  name: Cloud
+
+- slug: cto
+  name: CTO
+
+- slug: communication
+  name: Communication
+  
+- slug: open-source
+  name: Open Source
+
+- slug: api
+  name: API
+
+- slug: microservice
+  name: Microservice
+
+- slug: devops
+  name: Devops
+
+- slug: docker
+  name: Docker
+
+- slug: mobile
+  name: Mobile
+
+- slug: custdev
+  name: Customer Development
+
+- slug: smartsteuer
+  name: Smartsteuer