Updated How language to FLUX (name change)

lib/linguist/languages.yml

@@ -563,6 +563,16 @@ Fantom:
   color: "#dbded5"
   primary_extension: .fan
   
+FLUX:
+  type: programming
+  color: "#33CCFF"
+  primary_extension: .fx
+  lexer: Text only
+  extensions:
+  - .flux
+  - .FLUX
+  - .FX
+
 Forth:
   type: programming
   primary_extension: .fth
@@ -724,15 +734,6 @@ Haxe:
   extensions:
   - .hxsl
 
-HOW:
-  type: programming
-  coloe: "#CC0099"
-  lexer: Text only
-  primary_extension: .how
-  extensions:
-  - .howmeta
-  - .howproj
-
 INI:
   type: data
   extensions: