Install docs should clone from master branch

docs/installation/alpine_linux_en.md

@@ -87,7 +87,7 @@ sudo adduser -S -s /bin/false -h /opt/pleroma -H pleroma
 ```shell
 sudo mkdir -p /opt/pleroma
 sudo chown -R pleroma:pleroma /opt/pleroma
-sudo -Hu pleroma git clone https://git.pleroma.social/pleroma/pleroma /opt/pleroma
+sudo -Hu pleroma git clone -b master https://git.pleroma.social/pleroma/pleroma /opt/pleroma
 ```
 
 * Change to the new directory:

docs/installation/arch_linux_en.md

@@ -66,7 +66,7 @@ sudo useradd -r -s /bin/false -m -d /var/lib/pleroma -U pleroma
 ```shell
 sudo mkdir -p /opt/pleroma
 sudo chown -R pleroma:pleroma /opt/pleroma
-sudo -Hu pleroma git clone https://git.pleroma.social/pleroma/pleroma /opt/pleroma
+sudo -Hu pleroma git clone -b master https://git.pleroma.social/pleroma/pleroma /opt/pleroma
 ```
 
 * Change to the new directory:

docs/installation/centos7_en.md

@@ -143,7 +143,7 @@ sudo useradd -r -s /bin/false -m -d /var/lib/pleroma -U pleroma
 ```shell
 sudo mkdir -p /opt/pleroma
 sudo chown -R pleroma:pleroma /opt/pleroma
-sudo -Hu pleroma git clone https://git.pleroma.social/pleroma/pleroma /opt/pleroma
+sudo -Hu pleroma git clone -b master https://git.pleroma.social/pleroma/pleroma /opt/pleroma
 ```
 
 * Change to the new directory:

docs/installation/debian_based_en.md

@@ -68,7 +68,7 @@ sudo useradd -r -s /bin/false -m -d /var/lib/pleroma -U pleroma
 ```shell
 sudo mkdir -p /opt/pleroma
 sudo chown -R pleroma:pleroma /opt/pleroma
-sudo -Hu pleroma git clone https://git.pleroma.social/pleroma/pleroma /opt/pleroma
+sudo -Hu pleroma git clone -b master https://git.pleroma.social/pleroma/pleroma /opt/pleroma
 ```
 
 * Change to the new directory:

docs/installation/debian_based_jp.md

@@ -69,7 +69,7 @@ cd ~
 
 *  Gitリポジトリをクローンします。
 ```
-git clone https://git.pleroma.social/pleroma/pleroma
+ git clone -b master https://git.pleroma.social/pleroma/pleroma
 ```
 
 *  新しいディレクトリに移動します。

docs/installation/gentoo_en.md

@@ -106,7 +106,7 @@ It is highly recommended you use your own fork for the `https://path/to/repo` pa
 
 ```shell
  pleroma$ cd ~
- pleroma$ git clone https://path/to/repo
+ pleroma$ git clone -b master https://path/to/repo
 ```
 
 * Change to the new directory:

docs/installation/netbsd_en.md

@@ -58,7 +58,7 @@ Clone the repository:
 
 ```
 $ cd /home/pleroma
-$ git clone https://git.pleroma.social/pleroma/pleroma.git
+$ git clone -b master https://git.pleroma.social/pleroma/pleroma.git
 ```
 
 Configure Pleroma. Note that you need a domain name at this point:

docs/installation/openbsd_en.md

@@ -29,7 +29,7 @@ This creates a "pleroma" login class and sets higher values than default for dat
 Create the \_pleroma user, assign it the pleroma login class and create its home directory (/home/\_pleroma/): `useradd -m -L pleroma _pleroma`
 
 #### Clone pleroma's directory
-Enter a shell as the \_pleroma user. As root, run `su _pleroma -;cd`. Then clone the repository with `git clone https://git.pleroma.social/pleroma/pleroma.git`. Pleroma is now installed in /home/\_pleroma/pleroma/, it will be configured and started at the end of this guide.
+Enter a shell as the \_pleroma user. As root, run `su _pleroma -;cd`. Then clone the repository with ` git clone -b master https://git.pleroma.social/pleroma/pleroma.git`. Pleroma is now installed in /home/\_pleroma/pleroma/, it will be configured and started at the end of this guide.
 
 #### Postgresql
 Start a shell as the \_postgresql user (as root run `su _postgresql -` then run the `initdb` command to initialize postgresql:  

docs/installation/openbsd_fi.md

@@ -44,7 +44,7 @@ Vaihda pleroma-käyttäjään ja mene kotihakemistoosi:
 
 Lataa pleroman lähdekoodi:
 
-`$ git clone https://git.pleroma.social/pleroma/pleroma.git`
+`$ git clone -b master https://git.pleroma.social/pleroma/pleroma.git`
 
 `$ cd pleroma`