Adding navigation texts

Author: mesirendon

content.md

@@ -17,4 +17,4 @@
     * Tests
       * [Doubly Linked List Node](src/data-structures/doubly-linked-lists/__test__/doubly-linked-list-node.spec.js)
       * [Doubly Linked List Wrapper](src/data-structures/doubly-linked-lists/__test__/doubly-linked-list.spec.js)
-      * **TODO:** List of exercises
+    * **TODO:** List of exercises`]

src/data-structures/doubly-linked-lists/Doubly Linked Lists.ipynb

@@ -1453,6 +1453,15 @@
     "## Space Complexity\n",
     "Linked lists have $O(n)$ space complexity."
    ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "id": "fce69717",
+   "metadata": {},
+   "source": [
+    "[Back to Content](../../../content.md)"
+   ]
   }
  ],
  "metadata": {

src/data-structures/singly-linked-lists/Linked Lists.ipynb

@@ -1503,6 +1503,15 @@
     "## Space Complexity\n",
     "Linked lists have $O(n)$ space complexity."
    ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "id": "8b32e57d",
+   "metadata": {},
+   "source": [
+    "[Back to Content](../../../content.md)"
+   ]
   }
  ],
  "metadata": {

src/data-structures/singly-linked-lists/exercises/add-two-numbers/index.ipynb

@@ -1,9 +1,14 @@
 {
  "cells": [
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
+    "[Back to Content](../../../../../content.md)\n",
+    "\n",
+    "[Back to Singly Linked Lists Excersises](../README.md)\n",
+    "\n",
     "# Add Two Numbers\n",
     "You are given two **non-empty** linked lists representing two non-negative integers. The digits are stored in **reverse order**, and each of their nodes contains a single digit. Add the two numbers and return the sum as a linked list.\n",
     "\n",
@@ -208,6 +213,16 @@
    "source": [
     "checkCase([9, 9, 9, 9, 9, 9, 9], [9, 9, 9, 9]);"
    ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "[Back to Content](../../../../../content.md)\n",
+    "\n",
+    "[Back to Singly Linked Lists Excersises](../README.md)"
+   ]
   }
  ],
  "metadata": {

src/data-structures/singly-linked-lists/exercises/merge-two-sorted-lists/index.ipynb

@@ -1,9 +1,13 @@
 {
  "cells": [
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
+    "[Back to Content](../../../../../content.md)\n",
+    "\n",
+    "[Back to Singly Linked Lists Excersises](../README.md)\n",
     "# Merge Two Sorted Lists (as nodes)\n",
     "You are given the heads of two sorted linked lists `list1` and `list2`.\n",
     "\n",
@@ -20,6 +24,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -34,6 +39,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -71,6 +77,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -120,6 +127,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -151,6 +159,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -175,6 +184,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -199,6 +209,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -223,6 +234,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -247,6 +259,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -271,6 +284,7 @@
    ]
   },
   {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -293,6 +307,16 @@
    "source": [
     "checkCase([1, 2, 3, 9, 11, 12, 13, 14], [-1, 0, 1, 7, 8, 10]);"
    ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "[Back to Content](../../../../../content.md)\n",
+    "\n",
+    "[Back to Singly Linked Lists Excersises](../README.md)"
+   ]
   }
  ],
  "metadata": {