Add state sync to deweb

deweb/README.md

@@ -61,6 +61,22 @@ Next you have to make sure your validator is syncing blocks. You can use command
 dewebd status 2>&1 | jq .SyncInfo
 ```
 
+### (OPTIONAL) State Sync
+You can state sync your node in minutes by running commands below. Special thanks to `polkachu | polkachu.com#1249`
+```
+SNAP_RPC="https://deweb-testnet-rpc.polkachu.com:443"
+LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
+BLOCK_HEIGHT=$((LATEST_HEIGHT - 2000)); \
+TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)
+sed -i.bak -E "s|^(enable[[:space:]]+=[[:space:]]+).*$|\1true| ; \
+s|^(rpc_servers[[:space:]]+=[[:space:]]+).*$|\1\"$SNAP_RPC,$SNAP_RPC\"| ; \
+s|^(trust_height[[:space:]]+=[[:space:]]+).*$|\1$BLOCK_HEIGHT| ; \
+s|^(trust_hash[[:space:]]+=[[:space:]]+).*$|\1\"$TRUST_HASH\"| ; \
+s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.deweb/config/config.toml
+dewebd unsafe-reset-all
+systemctl restart dewebd && journalctl -fu dewebd -o cat
+```
+
 ### Create wallet
 To create new wallet you can use command below. Don’t forget to save the mnemonic
 ```