docs: update sed

docs/Tutorials/demo/budget_with_farming.md

@@ -76,24 +76,32 @@ $BINARY add-genesis-account $($BINARY keys show user2 --keyring-backend test -a)
 $BINARY gentx val1 50000000000000000stake --chain-id $CHAIN_ID --keyring-backend test
 $BINARY collect-gentxs
 
-# Check OS for sed -i option value
-export SED_I=""
-if [[ "$OSTYPE" == "darwin"* ]]; then 
-    export SED_I="''"
-fi 
-
-# Modify app.toml
-sed -i $SED_I 's/enable = false/enable = true/g' $HOME_FARMINGAPP/config/app.toml
-sed -i $SED_I 's/swagger = false/swagger = true/g' $HOME_FARMINGAPP/config/app.toml
-
-# Modify parameters for the governance proposal
-sed -i $SED_I 's%"amount": "10000000"%"amount": "1"%g' $HOME_FARMINGAPP/config/genesis.json
-sed -i $SED_I 's%"quorum": "0.334000000000000000",%"quorum": "0.000000000000000001",%g' $HOME_FARMINGAPP/config/genesis.json
-sed -i $SED_I 's%"threshold": "0.500000000000000000",%"threshold": "0.000000000000000001",%g' $HOME_FARMINGAPP/config/genesis.json
-sed -i $SED_I 's%"voting_period": "172800s"%"voting_period": "30s"%g' $HOME_FARMINGAPP/config/genesis.json
-
-# Modify inflation rate from 13% to 33%
-sed -i $SED_I 's%"inflation": "0.130000000000000000",%"inflation": "0.330000000000000000",%g' $HOME_FARMINGAPP/config/genesis.json
+# Check platform
+platform='unknown'
+unamestr=`uname`
+if [ "$unamestr" = 'Linux' ]; then
+   platform='linux'
+fi
+
+# Enable API and swagger docs and modify parameters for the governance proposal and
+# inflation rate from 13% to 33%
+if [ $platform = 'linux' ]; then
+	sed -i 's/enable = false/enable = true/g' $HOME_FARMINGAPP/config/app.toml
+	sed -i 's/swagger = false/swagger = true/g' $HOME_FARMINGAPP/config/app.toml
+	sed -i 's%"amount": "10000000"%"amount": "1"%g' $HOME_FARMINGAPP/config/genesis.json
+	sed -i 's%"quorum": "0.334000000000000000",%"quorum": "0.000000000000000001",%g' $HOME_FARMINGAPP/config/genesis.json
+	sed -i 's%"threshold": "0.500000000000000000",%"threshold": "0.000000000000000001",%g' $HOME_FARMINGAPP/config/genesis.json
+	sed -i 's%"voting_period": "172800s"%"voting_period": "30s"%g' $HOME_FARMINGAPP/config/genesis.json
+  sed -i 's%"inflation": "0.130000000000000000",%"inflation": "0.330000000000000000",%g' $HOME_FARMINGAPP/config/genesis.json
+else
+	sed -i '' 's/enable = false/enable = true/g' $HOME_FARMINGAPP/config/app.toml
+	sed -i '' 's/swagger = false/swagger = true/g' $HOME_FARMINGAPP/config/app.toml
+	sed -i '' 's%"amount": "10000000"%"amount": "1"%g' $HOME_FARMINGAPP/config/genesis.json
+	sed -i '' 's%"quorum": "0.334000000000000000",%"quorum": "0.000000000000000001",%g' $HOME_FARMINGAPP/config/genesis.json
+	sed -i '' 's%"threshold": "0.500000000000000000",%"threshold": "0.000000000000000001",%g' $HOME_FARMINGAPP/config/genesis.json
+	sed -i '' 's%"voting_period": "172800s"%"voting_period": "30s"%g' $HOME_FARMINGAPP/config/genesis.json
+  sed -i '' 's%"inflation": "0.130000000000000000",%"inflation": "0.330000000000000000",%g' $HOME_FARMINGAPP/config/genesis.json
+fi
 
 # Start
 $BINARY start
@@ -105,12 +113,14 @@ Create the `budget-proposal.json` file and copy the following JSON contents into
 
 In this demo, you create a budget plan that distributes partial amount of coins from the [FeeCollector module account](https://github.com/cosmos/cosmos-sdk/blob/master/x/auth/types/keys.go#L15) that collects gas fees and ATOM inflation in Cosmos Hub. This budget plan will be used for Gravity DEX farming plan to `GravityDEXFarmingBudget` account. 
 
-The `GravityDEXFarmingBudget` account is derived using the following query or code snippet.
+The `GravityDEXFarmingBudget` account is derived using the following query.
 ```bash
 $BINARY query budget address GravityDEXFarmingBudget --module-name farming
 # > address: cosmos1228ryjucdpdv3t87rxle0ew76a56ulvnfst0hq0sscd3nafgjpqqkcxcky
 ```
 
+This code snippet is how the module derives the account.
+
 ```go
 // cosmos1228ryjucdpdv3t87rxle0ew76a56ulvnfst0hq0sscd3nafgjpqqkcxcky
 sdk.AccAddress(address.Module("farming", []byte("GravityDEXFarmingBudget")))