Tags overhaul to improve search results, and some light rewording or reformating

content/docs/nethack/_index.md

@@ -2,6 +2,8 @@
 title: Nethack
 description: The dungeon crawler game
 layout: single
+tags:
+- nethack
 ---
 
 ## Nethack

content/docs/nethack/first_ascension.md

@@ -1,6 +1,8 @@
 ---
 title: First ascension
 description: a lawful human Valkyrie ascended to demigodhood in december 2017
+tags:
+- nethack
 ---
 
 

content/docs/nethack/nethackrc.md

@@ -1,6 +1,8 @@
 ---
 title: .nethackrc
 description: my nethack configuration file
+tags:
+- nethack
 ---
 
 ## .nethackrc

content/docs/nethack/second_ascension.md

@@ -1,6 +1,8 @@
 ---
 title: Second ascension
 description: a lawful human Samourai ascended to demigodhood in june 2018
+tags:
+- nethack
 ---
 
 ```

content/docs/nethack/third_ascension.md

@@ -1,6 +1,8 @@
 ---
 title: Third ascension
 description: a chaotic elf ranger ascended to demigodhood in june 2019
+tags:
+- nethack
 ---
 
 ```