added SNS to windows tutorial

INSTALL.windows.md

@@ -53,6 +53,7 @@ When output matches mempool.space, BTC Core synced.
 ```bash
 py -m pip install python-dotenv
 py -m pip install pyscopg2-binary
+py -m pip install json5
 py -m pip install requests
 ```
 
@@ -105,6 +106,13 @@ cd bitmap_api
 npm install
 ```
 
+Then install:
+```bash
+cd ..
+cd sns_api
+npm install
+```
+
 # Run
 
 **Main Meta-Protocol Indexer**
@@ -154,6 +162,24 @@ cd bitmap_api
 node api.js
 ```
 
+**SNS Indexer**
+```bash
+cd ..
+cd sns_index
+py reset_init.py
+```
+~ Complete prompts (if you did .env earlier, skip)
+```bash
+py sns_index.py
+```
+
+**SNS API**
+```bash
+cd ..
+cd sns_api
+node api.js
+```
+
 # Update
 
 - Stop all indexers and apis (preferably starting from main indexer but actually the order shouldn't matter)

README.md

@@ -94,6 +94,7 @@ cumulative_hash = sha256_hex(last_cumulative_hash + block_hash)
 
 For detailed installation guides:
 - Ubuntu: [installation guide](INSTALL.ubuntu.md)
+- Windows: [installation guide](INSTALL.windows.md)
 
 OPI uses PostgreSQL as DB. Before running the indexer, setup a PostgreSQL DB (all modules can write into different databases as well as use a single database).