chore: rename codeflare-template.rb to avoid brew install complaints

> Error: Cask 'codeflare-template' definition is invalid: Token 'codeflare' in header line does not match the file name.

This PR also fixes some typos in docs/release/README.md

Author: starpit

Casks/bump.sh

@@ -16,7 +16,7 @@ arm64=$(sha256sum "$SCRIPTDIR"/../dist/electron/CodeFlare-darwin-arm64.tar.bz2 |
 
 cp "$SCRIPTDIR"/codeflare.rb "$SCRIPTDIR"/codeflare.rb.bak
 
-cat "$SCRIPTDIR"/codeflare-template.rb \
+cat "$SCRIPTDIR"/codeflare.tpl \
     | sed -r "s/{{ x64 }}/$x64/g" \
     | sed -r "s/{{ arm64 }}/$arm64/g" \
           > "$SCRIPTDIR"/codeflare.rb

Casks/codeflare-template.rb renamed to Casks/codeflare.tpl

@@ -2,8 +2,8 @@
 
 ## Gather Secrets
 
-Copy [release-template.conf](release-template.conf) to
-`~/.codeflare-release.ebv` i.e. in your home directory, and update it
+Copy [release-template.env](release-template.env) to
+`~/.codeflare-release.env` i.e. in your home directory, and update it
 with your secrets.
 
 TODO explain how to get Apple code signing secrets.