prepare for release 0.4.0 (axolotl-ai-cloud#1175)

fix the sed command to replace the version w the tag

Merge pull request axolotl-ai-cloud#196 from OpenAccess-AI-Collective…

…/openllama-ft-config

tweak config to work

add release draft template for gh

Merge pull request axolotl-ai-cloud#111 from OpenAccess-AI-Collective…

…/sharegpt-token-tests

add unit test for sharegpt tokenization