README.md in needleman_wunsch_aligner-1.0.3 vs README.md in needleman_wunsch_aligner-1.0.4

@@ -10,22 +10,12 @@
     seq2 = 'GATTACA'
 
 The algorithm will find the optimal alignment based on a scoring function you specify:
 
     GCATG-CU
-    =+==!-=!
     G-ATTACA
 
-Meaning of the symbols:
-
-    = Match
-    ! Mismatch
-    + Insert
-    - Deletion
-
-Insert and Deletion are usually grouped together as `IndDel`.
-
 ## Installation
 
 Add this line to your application's Gemfile:
 
     gem 'needleman_wunsch_aligner'
@@ -50,14 +40,14 @@
 
 Inspect the alignment:
 
     puts aligner.inspect_alignment
 
-    # =>   1 | nil
-           2 | 2
-           3 | 3
-         nil | 4
+    # =>   1 - nil
+           2 = 2
+           3 = 3
+         nil + 4
 
 Inspect the score table:
 
     puts aligner.inspect_matrix(:score)
     # =>            2   3   4
@@ -67,15 +57,15 @@
             3  -3  -1   1   0
 
 Inspect the traceback table:
 
     puts aligner.inspect_matrix(:traceback)
-    # =>            2   3   4
-                x   ←   ←   ←
-            1   ↑   ↑   ↑   ↑
-            2   ↑   ⬉   ←   ←
-            3   ↑   ↑   ⬉   ←
+    # =>  2  3  4
+       x  ←  ←  ←
+    1  ↑  ↑  ↑  ↑
+    2  ↑  ⬉  ←  ←
+    3  ↑  ↑  ⬉  ←
 
 ## Customization
 
 The gem comes with a very basic scoring function. You can implement much more
 sophisticated ones by subclassing the `NeedlemanWunschAligner` class and overriding the following instance methods:
@@ -84,9 +74,14 @@
 * `default_gap_penalty`
 * `gap_indicator`
 
 Please see `NeedlemanWunschAligner::ExampleParagraphAndSentenceAligner` for an
 example.
+
+You can also override these methods which are related to `#inspect_alignment`:
+
+* `element_for_inspection_display`
+* `elements_are_equal_for_inspection`
 
 ## Contributing
 
 1. Fork it ( https://github.com/jhund/needleman_wunsch_aligner/fork )
 2. Create your feature branch (`git checkout -b my-new-feature`)