Changes gitter to slack

.vscodeignore

@@ -1,5 +1,5 @@
-!images/**/*.svg
-!images/*.svg
+!images/dark/**
+!images/light/**
 !images/gitlens-icon.png
 images/**
 .vscode/**

README.md

@@ -1,7 +1,7 @@
 [![](https://vsmarketplacebadge.apphb.com/version/eamodio.gitlens.svg)](https://marketplace.visualstudio.com/items?itemName=eamodio.gitlens)
 [![](https://vsmarketplacebadge.apphb.com/installs/eamodio.gitlens.svg)](https://marketplace.visualstudio.com/items?itemName=eamodio.gitlens)
 [![](https://vsmarketplacebadge.apphb.com/rating/eamodio.gitlens.svg)](https://marketplace.visualstudio.com/items?itemName=eamodio.gitlens)
-[![Chat at https://gitter.im/vscode-gitlens/Lobby](https://badges.gitter.im/vscode-gitlens/Lobby.svg)](https://gitter.im/vscode-gitlens/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Chat at https://vscode-gitlens.slack.com/](https://raw.githubusercontent.com/eamodio/vscode-gitlens/develop/images/chat-badge.png)](https://join.slack.com/t/vscode-gitlens/shared_invite/MjIxOTgxNDE3NzM0LTE1MDE2Nzk1MTgtMjkwMmZjMzcxNQ)
 
 # GitLens
 

package.json

@@ -14,9 +14,9 @@
     "description": "Supercharge Visual Studio Code's Git capabilities \u2014 Visualize code authorship at a glance via Git blame annotations and code lens, seamlessly navigate and explore the history of a file or branch, gain valuable insights via powerful comparison commands, and so much more",
     "badges": [
         {
-            "url": "https://badges.gitter.im/vscode-gitlens/Lobby.svg",
-            "href": "https://gitter.im/vscode-gitlens/Lobby",
-            "description": "Chat at https://gitter.im/vscode-gitlens/Lobby"
+            "url": "https://img.shields.io/badge/chat-on%20slack-brightgreen.svg",
+            "href": "https://join.slack.com/t/vscode-gitlens/shared_invite/MjIxOTgxNDE3NzM0LTE1MDE2Nzk1MTgtMjkwMmZjMzcxNQ",
+            "description": "Chat at https://vscode-gitlens.slack.com/"
         }
     ],
     "categories": [