Update release_issue_template

Update release_issue_template.

- Changed some wrong links (links pointed to version.go in IPFS-repo)
- Removed `Create a discussion for this release`
- Removed "Prep the changelog using `scripts/mkreleaselog`, and add it to `CHANGELOG.md`" since this already has been captured in the first pre-release step. Left that you should make sure that the CHANGELOG is up to date.

documentation/misc/RELEASE_ISSUE_TEMPLATE.md

@@ -66,14 +66,13 @@ Testing an RC:
   - [ ] Update the [CHANGELOG.md](https://github.com/filecoin-project/lotus/blob/master/CHANGELOG.md) to the state that can be used as release note.
   - [ ] Invite the wider community through (link to the release issue)
     
-- [ ] **Stage 4 - Release**
+- [ ] **Stage 4 - Stable Release**
   - [ ] Final preparation
-    - [ ] Verify that version string in [`version.go`](https://github.com/ipfs/go-ipfs/tree/master/version.go) has been updated.
-    - [ ] Prep the changelog using `scripts/mkreleaselog`, and add it to `CHANGELOG.md`. Ensure that [CHANGELOG.md](https://github.com/filecoin-project/lotus/blob/master/CHANGELOG.md) is up to date
+    - [ ] Verify that version string in [`version.go`](https://github.com/filecoin-project/lotus/blob/master/build/version.go) has been updated.
+    - [ ] Ensure that [CHANGELOG.md](https://github.com/filecoin-project/lotus/blob/master/CHANGELOG.md) is up to date
     - [ ] Merge `release-vX.Y.Z` into the `releases` branch.
     - [ ] Tag this merge commit (on the `releases` branch) with `vX.Y.Z`
-    - [ ] Cut the release [here](https://github.com/filecoin-project/lotus/releases/new?prerelease=true&target=releases).
-      - [ ] Check `Create a discussion for this release`
+    - [ ] Cut the release [here](https://github.com/filecoin-project/lotus/releases/new?prerelease=false&target=releases).
 
 
 - [ ] **Post-Release**