extension/tools: update license.sh to work with extension/LICENSE

And add LICENSE to the docs module.

Change-Id: Ib1b60b2022cd31d033370e26a1d098a5d525a74c
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/592815
Reviewed-by: Suzy Mueller <suzmue@golang.org>
Commit-Queue: Hyang-Ah Hana Kim <hyangah@gmail.com>
kokoro-CI: kokoro <noreply+kokoro@google.com>
Auto-Submit: Hyang-Ah Hana Kim <hyangah@gmail.com>

docs/LICENSE

@@ -0,0 +1,24 @@
+vscode-go
+
+The MIT License (MIT)
+
+Original Work Copyright (c) 2015-2020 Microsoft Corporation
+Current Work and Modifications Copyright (c) 2020-present The Go Authors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

extension/tools/license.sh

@@ -19,9 +19,10 @@ WORKTREE="$(mktemp -d)"
 BRANCH="license-gen-$(date +%Y%m%d%H%M%S)"
 
 git fetch
-git worktree add --track -b "${BRANCH}" "${WORKTREE}" origin/master
+git worktree add --track -b "${BRANCH}" "${WORKTREE}" origin/release
 
-cd "${WORKTREE}"
+EXTENSIONDIR="${WORKTREE}/extension"
+cd "${EXTENSIONDIR}"
 export GIT_GOFMT_HOOK=off
 
 YARN="${ROOT}/node_modules/.bin/yarn"
@@ -74,5 +75,5 @@ then
   printf "\n" >> "${LICENSEFILE}"
   cat thirdpartynotices.txt >> "${LICENSEFILE}"
 fi
-
-cd - && mv "${WORKTREE}/${LICENSEFILE}" . && git worktree remove "${WORKTREE}" -f
+ 
+cd "${ROOT}" && mv "${EXTENSIONDIR}/${LICENSEFILE}" "${LICENSEFILE}" && git worktree remove "${WORKTREE}" -f