Update 'CARDPUTER CircuitPython/projects/tumblr/readme.md'

CARDPUTER CircuitPython/projects/tumblr/readme.md

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 # plan
 - browse latest posts on the dashboard 1 by 1
 - post currently being viewed can be liked or quick reblogged (no tags OR "cardputer automation" tag i guess)
-- make a text post
+- make a text post
+
+# dependencies
+- needs the keyboard.py in the lib folder
+- download pytumblr from [here](https://pypi.org/project/PyTumblr) and put the extracted pytumblr file into lib