Add completions for got. Bonus points because this commit is via got!

completions/got.ksh

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+set -A complete_got_1 -- \
+	add \
+	bl blame \
+	bo backout \
+	br branch \
+	cat \
+	ci commit \
+	cl clone \
+	co checkout \
+	cy cherrypick \
+	di diff \
+	fe fetch \
+	he histedit \
+	ig integrate \
+	im import \
+	in init \
+	log \
+	rb rebase \
+	ref \
+	rm remove \
+	rv revert \
+	sg stage \
+	st status \
+	tag \
+	tr tree \
+	ug unstage \
+	up update
+

completions/got.org

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+* got completions
+
+The ~got~ completion currently supports the following arguments:
+
+** Level 1
+#+begin_src ksh
+	add \
+	bl blame \
+	bo backout \
+	br branch \
+	cat \
+	ci commit \
+	cl clone \
+	co checkout \
+	cy cherrypick \
+	di diff \
+	fe fetch \
+	he histedit \
+	ig integrate \
+	im import \
+	in init \
+	log \
+	rb rebase \
+	ref \
+	rm remove \
+	rv revert \
+	sg stage \
+	st status \
+	tag \
+	tr tree \
+	ug unstage \
+	up update
+#+end_src