add readme

README.md

@@ -10,5 +10,23 @@ pinned: false
 license: cc-by-nc-nd-4.0
 short_description: peptide converter
 ---
+# Peptide Sequence Analyzer
+
+This app analyzes peptide sequences from SMILES notation, identifying:
+- Amino acid sequence
+- Cyclic/linear structure
+- Modifications (N-methylation, O-linkages)
+
+## Usage
+1. Enter a SMILES string directly in the text box, or
+2. Upload a text file containing multiple SMILES (one per line)
+
+The app will return:
+- The parsed peptide sequence
+- Whether the peptide is cyclic
+- Any modifications present
+
+## Examples
+Try the provided example SMILES strings to see how the analyzer works.
 
 Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference