explain this repo option for generating

Makefile with optimization

move to imgui 1.65

move to imgui 1.64

take care of space before brackets in function

prepare 1.62.0-beta

Make struct ImFontConfig match imgui's.

Fixes problems using custom fonts.

update readme

revert missing ImFontConfig_DefaultConstructor, fix fn name ImFont_Ge…

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Update README.md