Add demo gif + slack channel links (#145)

* add demo gif

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* add slack channels to issue template selection

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* github is picky about the issue template file extension

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,11 @@
+contact_links:
+
+  - name: Help & Support Slack Channel ⛑️
+    # link to toolbox-help channel
+    url: https://anchorecommunity.slack.com/archives/C019BUXV7R6
+    about: Ask a questions and get answers
+
+  - name: Developer Slack Channel 💬
+    # link to toolbox-dev channel
+    url: https://anchorecommunity.slack.com/archives/C0190NF9TSM
+    about: Participate in design discussions and feature development

README.md

@@ -7,12 +7,12 @@
 
 A CLI tool and go library for generating a Software Bill of Materials (SBOM) from container images and filesystems.
 
-[//]: # (TODO: add example gif here)
+![Demo](.github/assets/syft-demo.gif)
 
 **Features**
 - Catalog container images and filesystems to discover packages and libraries.
 - Supports packages and libraries from various ecosystems (APK, DEB, RPM, Ruby Bundles, Python Wheel/Egg/requirements.txt, JavaScript NPM/Yarn, Java JAR/EAR/WAR, Jenkins plugins JPI/HPI, Go modules)
-- OS distribution detection (supports alpine, busybox, centos/redhat, debian/ubuntu flavored distributions)
+- Linux distribution identification (supports Alpine, BusyBox, CentOS/RedHat, Debian/Ubuntu flavored distributions)
 
 > :warning: **This is pre-release software** and it may not work as expected. If you encounter an issue, please [let us know using the issue tracker](https://github.com/anchore/syft/issues).