From 3fa9a964d4014588ce2b9e1b51db98605d231fc2 Mon Sep 17 00:00:00 2001
From: Kronopt <Kronopt@users.noreply.github.com>
Date: Mon, 27 Jan 2020 20:42:22 +0000
Subject: [PATCH] Update README.md

---
 README.md | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/README.md b/README.md
index 57a14fb..846e756 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,10 @@ $ pip install fastaparser
 ```
 
 ## Usage
+
+### Read FASTA files
 Generate python objects from FASTA files:
+
 ```Python
 >>> import fastaparser
 >>> with open("fasta_file.fasta") as fasta_file:
@@ -54,6 +57,27 @@ Header: >sp|P15822|ZEP1_HUMAN Zinc finger protein 40 OS=Homo sapiens OX=9606 GN.
 Sequence: MPRTKQIHPRNLRDKIEEAQKELNGAEVSKKEILQAGVKGTSESLKGVKRKKIVAENHLKKIPKSPLRN...
 ```
 
+### Write FASTA files
+Create FASTA files from FastaSequence objects:
+```Python
+>>> import fastaparser
+>>> with open("fasta_file.fasta", 'w') as fasta_file:
+        writer = fastaparser.Writer(fasta_file)
+        fasta_sequence = fastaparser.FastaSequence(
+            sequence='ACTGCTGCTAGCTAGC',
+            id='id123',
+            description='test sequence'
+        )
+        writer.writefasta(fasta_sequence)
+```
+or single header and sequence strings:
+```Python
+>>> import fastaparser
+>>> with open("fasta_file.fasta", 'w') as fasta_file:
+        writer = fastaparser.Writer(fasta_file)
+        writer.writefasta(('id123 test sequence', 'ACTGCTGCTAGCTAGC'))
+```
+
 ## Documentation
 Documentation for FastaParser is available here: [fastaparser.rtfd.io](https://fastaparser.readthedocs.io/en/latest/)