docs: improved plugin docs example readability

docs/PLUGINS.md

@@ -53,6 +53,7 @@ import { GolemNetwork, GolemPluginInitializer } from "@golem-sdk/golem-js";
  */
 const providerTracker: GolemPluginInitializer = (glm) => {
   const seenProviders: { id: string; name: string }[] = [];
+
   glm.market.events.on("offerProposalReceived", (event) => {
     const { id, name } = event.offerProposal.provider;
     const providerInfo = { id, name };
@@ -61,6 +62,7 @@ const providerTracker: GolemPluginInitializer = (glm) => {
       console.log("Saw new provider %s named %s", id, name);
     }
   });
+
   // Return a cleanup function that will be executed during the `disconnect`
   return () => {
     console.log("Provider tracker found a total of %d providers", seenProviders.length);
@@ -72,6 +74,7 @@ You can connect this plugin to your main script as follows:
 
 ```ts
 const glm = new GolemNetwork();
+
 // Register the plugin that will be initialized during `connect` call
 glm.use(providerTracker);
 ```
@@ -89,6 +92,7 @@ const checkGlmPriceBeforeStarting: GolemPluginInitializer<{
 }> = async (_glm, opts) => {
   // Call an exchange to get the quotes
   const response = await fetch("https://api.coinpaprika.com/v1/tickers/glm-golem");
+
   if (!response.ok) {
     throw new Error("Failed to fetch GLM price");
   } else {
@@ -99,6 +103,7 @@ const checkGlmPriceBeforeStarting: GolemPluginInitializer<{
     console.log("=== GLM Price ===");
     console.log("GLM price is", price);
     console.log("=== GLM Price ===");
+
     if (price > opts.maxPrice) {
       // Throwing inside the plugin will make `connect` throw, and then prevent
       // execution of the rest of the script
@@ -111,9 +116,8 @@ const checkGlmPriceBeforeStarting: GolemPluginInitializer<{
 Here's how to use the plugin:
 
 ```ts
-import { GolemNetwork } from "./golem-network";
-
 const glm = new GolemNetwork();
+
 glm.use(checkGlmPriceBeforeStarting, {
   maxPrice: 0.5,
 });