Remove nest.land workflow, update Discord link (#228)

* Remove Files for nest.land

* Change Discord Invite Link

.github/workflows/nestland.yml

@@ -1,21 +0,0 @@
-name: Ship Nest.Land
-
-on:
-  create:
-    ref_type: "tag"
-
-jobs:
-  release:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Setup repo
-        uses: actions/checkout@v2
-
-      - name: Setup Deno
-        uses: denolib/setup-deno@v2
-
-      - name: Publish module
-        run: |
-          deno install -A --unstable https://x.nest.land/eggs@0.3.2/eggs.ts
-          eggs link ${{ secrets.NESTAPIKEY }}
-          eggs publish --yes --no-check --version $(git describe --tags $(git rev-list --tags --max-count=1))