Rename keyboard-level readmes to lower-case (#10759)

This is the recommendation in the [PR
Checklist](https://docs.qmk.fm/#/pr_checklist?id=keyboard-prs) and it
will make working with them easier in the CLI/API/etc.

1 files changed, 30 insertions, 0 deletions

diff --git a/keyboards/bemeier/bmek/readme.md b/keyboards/bemeier/bmek/readme.md
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+# BMEK
+
+![BMEK](https://i.imgur.com/p1KFi6ql.jpg)
+
+BMEK combines the best of HHKB & Alice-likes. All PCB and case design files are open source.
+
+* Keyboard Maintainer: [Bemeier](https://github.com/Bemeier)
+* Hardware Supported: BMEK PCB rev1, rev2, rev3
+* Hardware Availability: Case & PCB files: [github.com/bemeier/bmek](https://github.com/bemeier/bmek)
+
+Make example for this keyboard, for an hhkb-like layout and keymap (after setting up your build environment):
+
+    make bemeier/bmek/rev3:default
+
+Make the VIA compatible firmware:
+
+    make bemeier/bmek/rev3:via
+
+The ```rev3```, denotes the version of the PCB.
+Check on the PCB to find out which version you have, and set it to rev1, rev2 or rev3 accordingly (the BMEK group buy PCBs are all rev3).
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+# Layouts
+
+Starting with rev3 (the version of the PCB to be shipped in the GB), the following layout options are supported:
+
+![layouts](https://i.imgur.com/XuFxwthl.png)
+
+Note that the keymap shown above may not accurately reflect the default keymap of the firmware (see the keymaps folder).