Move release_notes content to blog/posts dir (#433)

Move poetry logo and v0.8 pipeline screenshot to common dir

Fix Poetry logo display in v0.8.md
Use makdown ![]() image display for correct path set up
enable feature for resizing the svg
https://github.com/mkdocs/mkdocs/issues/1678

docs/blog/index.md

+# Blog

release_notes/v0.8.md → docs/blog/posts/v0.8.md

@@ -188,7 +188,9 @@ Within 0-342803 range, blocks with a wrong signature: 15144 31202 85448 87566 90
 
 ### A. Poetry
 
-<img src="images/poetry-logo.svg" width="7%" alt="Poetry logo">
+<center>
+![Poetry logo](../../../images/poetry-logo.svg){: style="height:120px;width:120px"}
+</center>
 
 We migrated the packaging and the dependency management tool from Pipenv to Poetry since Pipenv has been quite problematic recently and is also more suitable for larger projects.
 
@@ -208,7 +210,7 @@ Based on the containers set out above, a continuous integration and delivery pip
 - Tests on all supported Python versions,
 - Release publication automation on PyPI and PyPI test.
 
-![Silkaj pipeline](images/silkaj_pipeline.png)
+![Silkaj pipeline](../../../images/v0.8_pipeline.png)
 
 ## 7. Tests