Bump version to 0.6.8

Author: messense

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "jieba-rs"
-version = "0.6.7"
+version = "0.6.8"
 authors = ["messense <messense@icloud.com>", "Paul Meng <me@paulme.ng>"]
 categories = ["text-processing"]
 description = "The Jieba Chinese Word Segmentation Implemented in Rust"

examples/weicheng/Cargo.toml

@@ -2,7 +2,7 @@
 name = "weicheng"
 version = "0.1.0"
 authors = ["messense <messense@icloud.com>"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 jieba-rs = { path = "../.." }