Add ru version (#1865)

* Add Russian docs site baseline

* Add Russian localized codebase

* Polish Russian code wording

* Update ru code translation.

* Update code translation and chapter covers.

* Fix pythontutor extraction.

* Add README and landing page.

* placeholder of profiles

* Use figures of English version

* Remove chapter paperbook

ru/codes/javascript/chapter_dynamic_programming/climbing_stairs_dfs.js

@@ -0,0 +1,24 @@
+/**
+ * File: climbing_stairs_dfs.js
+ * Created Time: 2023-07-26
+ * Author: yuan0221 (yl1452491917@gmail.com)
+ */
+
+/* Поиск */
+function dfs(i) {
+    // dp[1] и dp[2] уже известны, вернуть их
+    if (i === 1 || i === 2) return i;
+    // dp[i] = dp[i-1] + dp[i-2]
+    const count = dfs(i - 1) + dfs(i - 2);
+    return count;
+}
+
+/* Подъем по лестнице: поиск */
+function climbingStairsDFS(n) {
+    return dfs(n);
+}
+
+/* Driver Code */
+const n = 9;
+const res = climbingStairsDFS(n);
+console.log(`Количество способов подняться по лестнице из ${n} ступеней = ${res}`);