= improve Markdown docs

- fix typo
  - 即有 -> 既有
  - 便捷的使用 -> 便捷地使用
- http -> https

Author: oldratlee

README.md

@@ -12,7 +12,7 @@
 [![GitHub issues](https://img.shields.io/github/issues/oldratlee/useful-scripts)](https://github.com/oldratlee/useful-scripts/issues)
 [![GitHub Contributors](https://img.shields.io/github/contributors/oldratlee/useful-scripts)](https://github.com/oldratlee/useful-scripts/graphs/contributors)
 
-👉 把平时有用的手动操作做成脚本，这样可以便捷的使用。 ✨
+👉 把平时有用的手动操作做成脚本，以便捷地使用。 ✨
 
 
 欢迎 👏💖

docs/shell.md

@@ -170,8 +170,8 @@ Examples:
   cat f - g  Output f's contents, then standard input, then g's contents.
   cat        Copy standard input to standard output.
 
-GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
-Full documentation at: <http://www.gnu.org/software/coreutils/cat>
+GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
+Full documentation at: <https://www.gnu.org/software/coreutils/cat>
 or available locally via: info '(coreutils) cat invocation'
 ```
 
@@ -571,7 +571,7 @@ find file: bar.txt
 
 选项说明最后可以有选项类型说明：
 
-- `-`： 无参数的选项。即有选项则把值设置成`true`。这是 ***缺省*** 的类型。
+- `-`： 无参数的选项。既有选项则把值设置成`true`。这是 ***缺省*** 的类型。
 - `:`： 有参数的选项，值只有一个。
 - `+`： 有多个参数值的选项。值列表要以`;`表示结束。  
   注意，`;`是`Bash`的元字符（用于一行中多个命令分隔），所以加上转义写成`\;`（当然也可以按你的喜好写成`";"`或`';'`）。

docs/vcs.md

@@ -46,17 +46,17 @@ swtrunk path/to/svn/work/directory1 /path/to/svn/work/directory2 # svn工作目
 ```bash
 $ swtrunk
 # <svn sw output...>
-svn work dir . switch from http://www.foo.com/project1/branches/feature1 to http://www.foo.com/project1/trunk !
+svn work dir . switch from https://www.foo.com/project1/branches/feature1 to https://www.foo.com/project1/trunk !
 
 $ swtrunk /path/to/svn/work/dir
 # <svn sw output...>
-svn work dir /path/to/svn/work/dir switch from http://www.foo.com/project1/branches/feature1 to http://www.foo.com/project1/trunk !
+svn work dir /path/to/svn/work/dir switch from https://www.foo.com/project1/branches/feature1 to https://www.foo.com/project1/trunk !
 
 $ swtrunk /path/to/svn/work/dir1 /path/to/svn/work/dir2
 # <svn sw output...>
-svn work dir /path/to/svn/work/dir1 switch from http://www.foo.com/project1/branches/feature1 to http://www.foo.com/project1/trunk !
+svn work dir /path/to/svn/work/dir1 switch from https://www.foo.com/project1/branches/feature1 to https://www.foo.com/project1/trunk !
 # <svn sw output...>
-svn work dir /path/to/svn/work/dir2 switch from http://www.foo.com/project2/branches/feature1 to http://www.foo.com/project2/trunk !
+svn work dir /path/to/svn/work/dir2 switch from https://www.foo.com/project2/branches/feature1 to https://www.foo.com/project2/trunk !
 ```
 
 🍺 [svn-merge-stop-on-copy](../legacy-bin/svn-merge-stop-on-copy)
@@ -76,9 +76,9 @@ svn-merge-stop-on-copy <来源的远程分支> <目标远程分支>
 ### 示例
 
 ```bash
-svn-merge-stop-on-copy http://www.foo.com/project1/branches/feature1 # 缺省使用当前目录作为svn工作目录
-svn-merge-stop-on-copy http://www.foo.com/project1/branches/feature1 /path/to/svn/work/directory
-svn-merge-stop-on-copy http://www.foo.com/project1/branches/feature1 http://www.foo.com/project1/branches/feature2
+svn-merge-stop-on-copy https://www.foo.com/project1/branches/feature1 # 缺省使用当前目录作为svn工作目录
+svn-merge-stop-on-copy https://www.foo.com/project1/branches/feature1 /path/to/svn/work/directory
+svn-merge-stop-on-copy https://www.foo.com/project1/branches/feature1 https://www.foo.com/project1/branches/feature2
 ```
 
 ### 贡献者
@@ -102,7 +102,7 @@ cp-svn-url /path/to/svn/work/directory
 
 ```bash
 $ cp-svn-url
-http://www.foo.com/project1/branches/feature1 copied!
+https://www.foo.com/project1/branches/feature1 copied!
 ```
 
 ### 贡献者