Ok, lets see if I understand the system:
If a "paragraph"-image is followed directly by a paragraph containing inlined images, these are moved into seperate paragraphs when github creates the page:
This sentence follows directly and contains some inlined images as and .If there is a blank line between a "paragraph"-image and the following text, its inlined images are preserved:
Between the preceeding image and this sentence is a blank line in the readme.md file. And this paragraph containts some inlined images as well, like and .
This sentence is directly before a paragraph-image and contains inlined images ( and ), which are preserved.