chore: update example

README.md

@@ -46,3 +46,49 @@ diamond.blastp(
     out="test_output"
 )
 ```
+
+### Advanced usage.
+
+Some parameter options are not implemented in current release,
+You could directly use it like this.
+
+```python
+diamond.blastp(
+    query="test_proteins.fasta",
+    out="test_blastp_output",
+    outfmt=OutFormat.BLAST_TABULAR,
+    sensitivity=Sensitivity.DEFAULT,
+    top=5 # `--top` option is not directly defined
+    block_size=2.0 # `--block-size` is not directly defined
+)
+```
+
+and you can global change the tabular output with customed title by
+```python
+OutFormat.BLAST_TABULAR.with_extra_option(
+        "qseqid", "qstart",
+        "qend", "qlen", "sseqid"
+    ) # it will change it globally
+
+# call this will reset to default
+OutFormat.BLAST_TABULAR.reset()
+```
+
+In fact, you can call the original C++ main method like this:
+````python
+from .libdiamond import main
+args = ['bastp', '--query', 'data.fasta', '--db', 'db.dmnd']
+main(*args)
+````
+But it is not recommended because the original C++ api lacks necessary
+interface encapsulation and parameter checking. At the same time, 
+it is not pythonic enough, and there is no parameter reminder during programming
+unless you read the original parameter document.
+
+## How to contrib
+The core of python wrap is to use custom python methods and `Diamond._build_options` to 
+call the `libdiamond.main` method More convenient packaging.
+Therefore, anyone can make customized extensions through the 
+above ideas. I maintains this project after work, 
+so I cannot make it in time Keep up to date with all 
+diamond developments. Everyone is welcome to submit PRs.

test/test.py

@@ -19,14 +19,15 @@
         "qend", "qlen", "sseqid"
     ),
     sensitivity=Sensitivity.DEFAULT,
-    top=5
+    top=5,
+    block_size=2.0
 )
 
 diamond.blastx(
     query="test_dna.fasta",
     out="test_blastx_output",
     outfmt=OutFormat.BLAST_TABULAR.reset().value,
-    top=10
+    max_target_seqs=10
 )
 
 diamond.test()