Update readme for 2015

2015/README.md

@@ -1,28 +1,29 @@
 # [Advent of Code 2015](https://adventofcode.com/2015)
 
-## Progress
+| Solved | Day | Language
-- [x] Day 01
+|:------:|:---:|:---------
-- [x] Day 02
+| ✓      | 01  | Ruby
-- [x] Day 03
+| ✓      | 02  | Ruby
-- [x] Day 04
+| ✓      | 03  | Ruby
-- [x] Day 05
+| ✓      | 04  | Rust
-- [x] Day 06
+| ✓      | 05  | Ruby
-- [x] Day 07
+| ✓      | 06  | Ruby
-- [x] Day 08
+| ✓      | 07  | Rust
-- [x] Day 09
+| ✓      | 08  | Ruby
-- [x] Day 10
+| ✓      | 09  | Rust
-- [ ] Day 11
+| ✓      | 10  | Ruby
-- [ ] Day 12
+|        | 11  |
-- [ ] Day 13
+|        | 12  |
-- [ ] Day 14
+|        | 13  |
-- [ ] Day 15
+|        | 14  |
-- [ ] Day 16
+|        | 15  |
-- [ ] Day 17
+|        | 16  |
-- [ ] Day 18
+|        | 17  |
-- [ ] Day 19
+|        | 18  |
-- [ ] Day 20
+|        | 19  |
-- [ ] Day 21
+|        | 20  |
-- [ ] Day 22
+|        | 21  |
-- [ ] Day 23
+|        | 22  |
-- [ ] Day 24
+|        | 23  |
-- [ ] Day 25
+|        | 24  |
+|        | 25  |