Intallation instructions updated

Improved github templates with the comments

[ci skip]

.github/ISSUE_TEMPLATE.md

@@ -1,4 +1,4 @@
-Thanks for reporting an issue! Please make sure you click the link above to view the issue guidelines, then fill out the blanks below.
+<!-- Thanks for reporting an issue! Please make sure you click the link above to view the issue guidelines, then fill out the blanks below. -->
 
 What are the steps to reproduce this issue?
 -------------------------------------------

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,11 +1,11 @@
-Thanks for sending a pull request!
+<!-- Thanks for sending a pull request!
 
 Here's how it's done:
 1. Make sure that you open your pull-request to the `develop` branch (master branch is protected, since some plugins use it when installed)
 2. Make sure that tests pass
 3. Make sure that your code has the same style
 
-Please make sure you click the link above to view the contribution guidelines, then fill out the blanks below.
+Please make sure you click the link above to view the contribution guidelines, then fill out the blanks below. -->
 
 What does this implement/fix? Explain your changes.
 ---------------------------------------------------

man/man7/git-secret.7.ronn

@@ -49,11 +49,17 @@ There are several ways to install `git-secret`:
 
 **** `deb` package ****
 
-1. Run `echo "deb https://dl.bintray.com/sobolevn/deb git-secret stable" | sudo tee -a /etc/apt/sources.list`
-2. Run `sudo apt-get install git-secret`
+You can find the `deb` repository [here](https://bintray.com/sobolevn/deb/git-secret).
+
+0. Pre-requirements: make sure you have installed `apt-transport-https`
+1. Run `echo "deb https://dl.bintray.com/sobolevn/deb git-secret main" | sudo tee -a /etc/apt/sources.list`
+2. Add the release key: `wget -qO - https://api.bintray.com/users/sobolevn/keys/gpg/public.key | sudo apt-key add -`
+3. Run `sudo apt-get update && sudo apt-get install git-secret`
 
 **** `rpm` package ****
 
+You can find the `rpm` repository [here](https://bintray.com/sobolevn/rpm/git-secret).
+
 1. Run `wget https://bintray.com/sobolevn/rpm/rpm -O bintray-sobolevn-rpm.repo && sudo mv bintray-sobolevn-rpm.repo /etc/yum.repos.d/`
 2. Run `sudo yum install git-secret`