Making keys documentation convention consistent.

INSTALLATION.md

@@ -338,7 +338,7 @@ hstr --show-configuration >> ~/.bashrc
 . ~/.bashrc
 ```
 
-Make sure to **run** HSTR using <kbd>Ctrl</kbd><kbd>r</kbd> (or `hstrwsl`) - otherwise commands will not appear in prompt.
+Make sure to **run** HSTR using <kbd>Ctrl-r</kbd> (or `hstrwsl`) - otherwise commands will not appear in prompt.
 
 [Configure](CONFIGURATION.md) HSTR and check its [man page](README.md#documentation).
 
@@ -369,7 +369,7 @@ hstr --show-configuration >> ~/.bashrc
 . ~/.bashrc
 ```
 
-Make sure to **run** HSTR using <kbd>Ctrl</kbd><kbd>r</kbd> (or `hstrcygwin`) - otherwise commands will not appear in prompt.
+Make sure to **run** HSTR using <kbd>Ctrl-r</kbd> (or `hstrcygwin`) - otherwise commands will not appear in prompt.
 
 [Configure](CONFIGURATION.md) HSTR and check its [man page](README.md#documentation).
 ## Build on macOS

README.md

@@ -18,7 +18,7 @@ again? Are you looking for a tool that is able to manage your
 
 HSTR (**H**i**ST**o**R**y) is a command line utility that brings improved Bash/zsh command completion
 from the history. It aims to make completion **easier** and more **efficient**
-than <kbd>Ctrl</kbd><kbd>r</kbd>.
+than <kbd>Ctrl-r</kbd>.
 
 HSTR can also **manage** your command history (for instance you can remove
 commands that are obsolete or contain a piece of sensitive information)

doc/USER-DOCUMENTATION.md

@@ -18,7 +18,7 @@ Table of contents:
 * Examples
 
 # Features
-HSTR is typically started by pressing <kbd>Ctrl</kbd><kbd>r</kbd> after
+HSTR is typically started by pressing <kbd>Ctrl-r</kbd> after
 you configure it for this shorcut in your shell. However,
 you can run it as a normal program just by typing:
 
@@ -71,10 +71,10 @@ HSTR allows you to store and manage your favorite
 commands. 
 
 A new favorite command can be added from
-ranking or raw history view by pressing <kbd>Ctrl</kbd><kbd>f</kbd>.
+ranking or raw history view by pressing <kbd>Ctrl-f</kbd>.
 
 You can check your favorite commands by choosing 
-favorite view - rotate views using <kbd>Ctrl</kbd><kbd>/</kbd> or start
+favorite view - rotate views using <kbd>Ctrl-/</kbd> or start
 HSTR by adding `favorites-view` to `HSTR_CONFIG` environment
 property. A favorite command can be choosen just
 by pressing `ENTER` when on command in favorite view.
@@ -138,7 +138,7 @@ hstr --kill-last-command
 ```
 
 See configuration section for how to bind this functionality to
-a key - bound to <kbd>Ctrl</kbd><kbd>x</kbd> <kbd>k</kbd> by default.
+a key - bound to <kbd>Ctrl-k</kbd> by default.
 
 
 # Examples