Add 2019 to ToC for community file

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>

community.md

@@ -6,12 +6,15 @@ Welcome to the OpenFaaS community page where you can find:
 * [Function Providers/Back-ends](#openfaas-providers)
 
 * Events
+    * [2019](#events-in-2019)
     * [2018](#events-in-2018)
     * [2017](#events-in-2017)
 
 * Blog posts and write-ups
+    * [2019](#blog-posts-and-write-ups-2019)
     * [2018](#blog-posts-and-write-ups-2018)
     * [2017](#blog-posts-and-write-ups-2017)
+
 * [Repositories - Projects, Samples, and Use Cases](#repositories)
 
 There are several key GitHub repositories for the project which are available under the [openfaas](https://github.com/openfaas) organisation. Incubator and experimental projects are under the [openfaas-incubator](https://github.com/openfaas-incubator) organisation.