Spelling or grammatical errors in Readme.md

[Menghua1]

Describe the issue:
Word spelling error.
Hike Images samples (link1, link2) in the Semantic Kernel and Azure OpenAI SDK directories have this issue.

Suggestion:
Change to dall.

Describe the issue:
Grammatical errors.
All samples in the Semantic Kernel and Azure OpenAI SDK directories have this issue.


Suggestion:

1. Change to other samples or another sample.
2. Remove redundant minute.

@hemarina and @FBoucher for notification.