change installation source from master to main

Signed-off-by: spacewander <spacewanderlzx@gmail.com>

Author: spacewander

Installation.md

@@ -159,7 +159,7 @@ See the Makefile for details on advanced configuration options.
 One-liner:
 
 ```bash
-curl -sSL https://raw.githubusercontent.com/tj/git-extras/master/install.sh | sudo bash /dev/stdin
+curl -sSL https://raw.githubusercontent.com/tj/git-extras/main/install.sh | sudo bash /dev/stdin
 ```
 
 ## Installing as Zsh plugin

bin/git-extras

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 VERSION="7.1.0-dev"
-INSTALL_SCRIPT="https://raw.githubusercontent.com/tj/git-extras/master/install.sh"
+INSTALL_SCRIPT="https://raw.githubusercontent.com/tj/git-extras/main/install.sh"
 
 update() {
   local bin="$(command -v git-extras)"

brew-release.patch

@@ -3,7 +3,7 @@ index e49cd24..4ae28b5 100755
 --- a/bin/git-extras
 +++ b/bin/git-extras
 @@ -4,13 +4,12 @@ VERSION="4.3.0"
- INSTALL_SCRIPT="https://raw.githubusercontent.com/tj/git-extras/master/install.sh"
+ INSTALL_SCRIPT="https://raw.githubusercontent.com/tj/git-extras/main/install.sh"
 
  update() {
 -  local bin="$(command -v git-extras)"