Move the repetitive portion of release notes to the bottom

.github/workflows/main.yml

@@ -32,8 +32,9 @@ jobs:
           echo ::set-output name=VERSION::${GITHUB_REF/refs\/tags\//}
       - name: Assemble release notes
         run: |
-          sed -e 's/%version%/${{ steps.release_info.outputs.VERSION }}/' RELEASE.HEAD.md > release.body.txt
-          grep -m1 -B10000  "==========" CHANGELOG.md | sed -e '/==========/d' >> release.body.txt
+          > release.body.txt
+          grep -m1 -B10000  "----------" CHANGELOG.md >> release.body.txt
+          sed -e 's/%version%/${{ steps.release_info.outputs.VERSION }}/' RELEASE.HEAD.md >> release.body.txt
       - name: Create GitHub release
         id: create_release
         uses: actions/create-release@v1

CHANGELOG.md

@@ -19,6 +19,6 @@ To benefit the much shorter update period enabled by differential updates, you m
 - [Prevent evaluating the SNFE until fully loaded](https://github.com/gorhill/uBlock/commit/89b272775a)
 - [Add support for differential update of filter lists](https://github.com/gorhill/uBlock/commit/d05ff8ffeb)
 
-==========
+----------
 
 Older release notes go here.

RELEASE.HEAD.md

@@ -1,3 +1,4 @@
+
 [Commits to master since this release](https://github.com/gorhill/uBlock/compare/%version%...master)
 
 To install the developer build:
@@ -7,6 +8,3 @@ To install the developer build:
 - **Chromium**: Install from the Chrome Web Store (CWS): <https://chrome.google.com/webstore/detail/ublock-origin-dev-build/cgbcahbpdhpcegmbfconppldiemgcoii>.
 - **Thunderbird**: Download [uBlock0_%version%.thunderbird.xpi](https://github.com/gorhill/uBlock/releases/download/%version%/uBlock0_%version%.thunderbird.xpi), then drag-n-drop it into Thunderbird's _Add-ons Manager_ pane (Thunderbird 91+ required)
 - **Node.js**: Import from [npm](https://www.npmjs.com/package/@gorhill/ubo-core), or download and unzip [uBlock0_%version%.npm.tgz](https://github.com/gorhill/uBlock/releases/download/%version%/uBlock0_%version%.npm.tgz).
-
----
-