Base: Unify synopsis format in manpages

Base/usr/share/man/man1/adjtime.md

@@ -4,8 +4,8 @@ adjtime - print remaining system clock adjustment, and optionally set it
 
 ## Synopsis
 
-```sh
-adjtime [options...]
+```**sh
+$ adjtime [options...]
 ```
 
 ## Description

Base/usr/share/man/man1/beep.md

@@ -4,7 +4,7 @@ beep - beep the pc speaker
 
 ## Synopsis
 
-```sh
+```**sh
 $ beep
 ```
 

Base/usr/share/man/man1/echo.md

@@ -4,7 +4,9 @@ echo - print the given text
 
 ## Synopsis
 
-`echo text...`
+```**sh
+$ echo text...
+```
 
 ## Description
 

Base/usr/share/man/man1/keymap.md

@@ -5,7 +5,7 @@ keymap - load a keyboard layout
 ## Synopsis
 
 ```**sh
-# keymap [name|file]
+$ keymap [name|file]
 ```
 
 ## Description

Base/usr/share/man/man1/mkdir.md

@@ -5,7 +5,7 @@ mkdir - create directories
 ## Synopsis
 
 ```**sh
-$ mkdir [ options...] directories...
+$ mkdir [options...] directories...
 ```
 
 ## Description

Base/usr/share/man/man1/printf.md

@@ -5,7 +5,7 @@ printf - format and print data
 ## Synopsis
 
 ```**sh
-printf <format> [arguments...]
+$ printf <format> [arguments...]
 ```
 
 ## Description

Base/usr/share/man/man1/uname.md

@@ -4,7 +4,9 @@ uname - print kernel information
 
 ## Synopsis
 
-`uname [-s] [-n] [-r] [-m] [-a]`
+```**sh
+$ uname [-s] [-n] [-r] [-m] [-a]`
+```
 
 ## Description
 

Base/usr/share/man/man1/watch.md

@@ -4,7 +4,9 @@ watch - execute a program periodically
 
 ## Synopsis
 
-`watch [-n interval] [-t] [-b] command`
+```**sh
+$ watch [-n interval] [-t] [-b] command`
+```
 
 ## Description
 

Base/usr/share/man/man5/SystemServer.md

@@ -4,7 +4,9 @@ SystemServer - services configuration
 
 ## Synopsis
 
-`/etc/SystemServer.ini`
+```**
+/etc/SystemServer.ini
+```
 
 ## Description