added docs

docs/capsword.md

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+# CapsWord
+The CapsWord module makes a key available that will function similar to caps lock but will deactive automatically when its encounters a key that breaks the word or after inactivity timeout.  
+By default it will not deactive capsword on numbers, alphabets, underscore, modifiers, minus, backspace and other keys like modtap, layers, etc
+Add it to your keyboard's modules list with:
+
+```python
+from kmk.modules.capsword import CapsWord
+# default inactivity timeout is 8s
+caps_word=CapsWord()
+# change inactivity timeout
+# caps_word=CapsWord(timeout=5000) 
+# for no inactivity timeout
+# caps_word=CapsWord(timeout=0) 
+# add additional ignored keys
+# caps_word.keys_ignored.append(KC.COMMA) 
+keyboard.modules.append(caps_word)
+keyboard.keymap = [
+    [
+        KC.CW,
+    ],
+]
+```
+## Keycodes
+
+|Key                    |Aliases             |Description                                    |
+|-----------------------|--------------------|-----------------------------------------------|
+|`KC.CW`                |`KC.CAPSWORD`       |Enables/disables capsword                      |