update description

Signed-off-by: hehechen <awd123456sss@gmail.com>

Cargo.toml

@@ -1,15 +1,15 @@
 [package]
-name = "backtrace"
+name = "pprof-backtrace"
 version = "0.3.61"
 authors = ["The Rust Project Developers"]
 build = "build.rs"
 license = "MIT/Apache-2.0"
 readme = "README.md"
-repository = "https://github.com/rust-lang/backtrace-rs"
-homepage = "https://github.com/rust-lang/backtrace-rs"
+repository = "https://github.com/hehechen/backtrace-rs"
+homepage = "https://github.com/hehechen/backtrace-rs"
 documentation = "https://docs.rs/backtrace"
 description = """
-A library to acquire a stack trace (backtrace) at runtime in a Rust program.
+A library to acquire a stack trace (backtrace) at runtime in a Rust program. Fork from https://github.com/rust-lang/backtrace-rs.
 """
 autoexamples = true
 autotests = true
@@ -100,7 +100,7 @@ verify-winapi = [
 ]
 
 [[example]]
-name = "backtrace"
+name = "pprof-backtrace"
 required-features = ["std"]
 
 [[example]]