Merge pull request #991 from cpunion/update-doc

doc: update install instructions

doc/_readme/scripts/install_full.sh

@@ -0,0 +1,9 @@
+# shellcheck disable=all
+git clone https://github.com/goplus/llgo.git
+cd llgo/compiler
+go install -v ./cmd/...
+go install -v ./chore/...  # compile all tools except pydump
+export LLGO_ROOT=$PWD/..
+cd ../_xtool
+llgo install ./...   # compile pydump
+go install github.com/goplus/hdq/chore/pysigfetch@v0.8.1  # compile pysigfetch

doc/_readme/scripts/install_llgo.sh

@@ -1,9 +1,4 @@
 # shellcheck disable=all
 git clone https://github.com/goplus/llgo.git
-cd llgo/compiler
-go install -v ./cmd/...
-go install -v ./chore/...  # compile all tools except pydump
-export LLGO_ROOT=$PWD/..
-cd ../_xtool
-llgo install ./...   # compile pydump
-go install github.com/goplus/hdq/chore/pysigfetch@v0.8.1  # compile pysigfetch
+cd llgo
+./install.sh

doc/_readme/scripts/install_macos.sh

@@ -3,4 +3,4 @@ brew update
 brew install llvm@18 bdw-gc openssl cjson libffi libuv pkg-config
 brew install python@3.12 # optional
 brew link --force libffi
-go install -v github.com/goplus/llgo/cmd/llgo@latest
+curl https://raw.githubusercontent.com/goplus/llgo/refs/heads/main/install.sh | bash

doc/_readme/scripts/install_ubuntu.sh

@@ -4,4 +4,4 @@ wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
 sudo apt-get update
 sudo apt-get install -y llvm-18-dev clang-18 libclang-18-dev lld-18 pkg-config libgc-dev libssl-dev zlib1g-dev libcjson-dev libsqlite3-dev libunwind-dev libuv1-dev
 sudo apt-get install -y python3.12-dev # optional
-go install -v github.com/goplus/llgo/cmd/llgo@latest
+curl https://raw.githubusercontent.com/goplus/llgo/refs/heads/main/install.sh | bash