Replace js -> json5 code blocks

CI/example.markdownlint-cli2.jsonc

@@ -186,7 +186,7 @@
 		// FIXME: enable and consider fixing
 		//{
 		//// List of languages
-		//	"allowed_languages": [ "cpp", "json", "jsonc", "json5", "sh" ],
+		//	"allowed_languages": [ "cpp", "json5", "sh" ],
 		//// Require language only
 		//	"language_only": true
 		//},

docs/modders/Campaign_Format.md

@@ -9,7 +9,7 @@ To start making campaign, create file named `header.json`. See also [Packing cam
 
 Basic structure of this file is here, each section is described in details below
 
-```js
+```json5
 {
     "version" : 1,
 
@@ -34,7 +34,7 @@ Basic structure of this file is here, each section is described in details below
 
 In header are parameters describing campaign properties
 
-```js
+```json5
     ...
     "regions": {...},
     "name": "Campaign name",
@@ -63,7 +63,7 @@ In header are parameters describing campaign properties
 
 Scenario description looks like follow:
 
-```js
+```json5
 {
     "map": "maps/SomeMap",
     "preconditions": [],
@@ -100,7 +100,7 @@ Scenario description looks like follow:
 
 Prolog and epilog properties are optional
 
-```js
+```json5
 {
     "video": "NEUTRALA.smk", //video to show
     "music": "musicFile.ogg", //music to play, should be located in music directory
@@ -119,7 +119,7 @@ If `startOptions` is `none`, `bonuses` field will be ignored
 
 If `startOptions` is `bonus`, bonus format may vary depending on its type.
 
-```js
+```json5
 {
     "what": "",
 
@@ -162,7 +162,7 @@ If `startOptions` is `bonus`, bonus format may vary depending on its type.
 
 If `startOptions` is `crossover`, heroes from specific scenario will be moved to this scenario. Bonus format is following
 
-```js
+```json5
 {
     "playerColor": 0,
     "scenario": 0
@@ -176,7 +176,7 @@ If `startOptions` is `crossover`, heroes from specific scenario will be moved to
 
 If `startOptions` is `hero`, hero can be chosen as a starting bonus. Bonus format is following
 
-```js
+```json5
 {
     "playerColor": 0,
     "hero": "random"
@@ -190,7 +190,7 @@ If `startOptions` is `hero`, hero can be chosen as a starting bonus. Bonus forma
 
 Predefined campaign regions are located in file `campaign_regions.json`
 
-```js
+```json5
 {
     "background": "ownRegionBackground.png",
 		"suffix": ["Enabled", "Selected", "Conquered"],

docs/modders/Difficulty.md

@@ -50,7 +50,7 @@ For both types of bonuses, `source` should be specified as `OTHER`.
 
 ## Example
 
-```js
+```json5
 { //will give 150% extra health to all players' creatures if specified in "battleBonuses" array
 	"type" : "STACK_HEALTH",
 	"val" : 150,

docs/modders/Map_Objects/Market.md

@@ -7,7 +7,7 @@ Markets can be added as any other object with special handler called "market".
 
 Here is schema describing such object
 
-```js
+```json5
 "seafaringAcademy" : //object name
 {
 	"handler" : "market", //market handler
@@ -85,14 +85,14 @@ See [Secondary skills](Rewardable.md#secondary-skills) description for more deta
 
 ### Example for University of magic (e.g conflux building)
 
-```js
+```json5
 "modes" : ["resource-skill"],
 "offer" : ["airMagic", "waterMagic", "earthMagic", "fireMagic"]
 ```
 
 ### Example for regular University
 
-```js
+```json5
 "modes" : ["resource-skill"],
 "offer" : [ //4 random skills except necromancy
     { "noneOf" : ["necromancy"] },