Add reference pages to docs sidebar, change titles to include description like python

gitlab-pages/docs/reference/big_map.md

@@ -1,6 +1,6 @@
 ---
 id: big-map-reference
-title: Big Map
+title: Big Map — Scalable hashmap primitive
 ---
 
 ## Defining A Big Map Type

gitlab-pages/docs/reference/bytes.md

@@ -1,6 +1,6 @@
 ---
 id: bytes-reference
-title: Bytes
+title: Bytes — Manipulate bytes data
 ---
 
 ## Bytes.concat(b1: bytes, b2: bytes) : bytes

gitlab-pages/docs/reference/crypto.md

@@ -1,6 +1,6 @@
 ---
 id: crypto-reference
-title: Crypto
+title: Crypto — Cryptographic functions
 ---
 
 ## Crypto.blake2b(data: bytes): bytes

gitlab-pages/docs/reference/list.md

@@ -1,6 +1,6 @@
 ---
 id: list-reference
-title: List
+title: List — Ordered collection of a type
 ---
 
 ## List.size(lst: a' list) : nat

gitlab-pages/docs/reference/map.md

@@ -1,6 +1,6 @@
 ---
 id: map-reference
-title: Map
+title: Map — Hashmaps that it makes sense to iterate over
 ---
 
 ## Defining A Map Type

gitlab-pages/docs/reference/set.md

@@ -1,6 +1,6 @@
 ---
 id: set-reference
-title: Set
+title: Set — Unordered unique collection of a type
 ---
 
 ## Defining a set

gitlab-pages/docs/reference/string.md

@@ -1,6 +1,6 @@
 ---
 id: string-reference
-title: String
+title: String — Manipulate string data
 ---
 
 ## String.size(s: string) : nat

gitlab-pages/website/sidebars.json

@@ -20,9 +20,17 @@
       "advanced/include",
       "advanced/first-contract"
     ],
-    "API": [
+    "API & Reference": [
       "api/cli-commands",
-      "api/cheat-sheet"
+      "api/cheat-sheet",
+      "reference/big-map-reference",
+      "reference/bytes-reference",
+      "reference/crypto-reference",
+      "reference/current-reference",
+      "reference/list-reference",
+      "reference/map-reference",
+      "reference/set-reference",
+      "reference/string-reference"
     ]
   },
   "contributors-docs": {