Add missing info for gems in Gemfile (#5273)

Gemfile

@@ -27,11 +27,11 @@ gem "carrierwave-bombshelter", "~> 0.2" # Protect your carrierwave from image bo
 gem "cld", "~> 0.8" # Compact Language Detection for Ruby
 gem "cloudinary", "~> 1.13" # Client library for easily using the Cloudinary service
 gem "counter_culture", "~> 2.2" # counter_culture provides turbo-charged counter caches that are kept up-to-date
-gem "ddtrace", "~> 0.25.0"
+gem "ddtrace", "~> 0.25.0" # ddtrace is Datadog’s tracing client for Ruby.
 gem "delayed_job_active_record", "~> 4.1" # ActiveRecord backend for Delayed::Job
 gem "delayed_job_web", "~> 1.4" # Web interface for delayed_job
 gem "devise", "~> 4.7" # Flexible authentication solution for Rails
-gem "dogstatsd-ruby"
+gem "dogstatsd-ruby", "~> 4.5" # A client for DogStatsD, an extension of the StatsD metric server for Datadog
 gem "doorkeeper", "~> 5.2" # Oauth 2 provider
 gem "draper", "~> 3.1" # Draper adds an object-oriented layer of presentation logic to your Rails apps
 gem "dry-struct", "~> 1.2" # Typed structs and value objects
@@ -51,7 +51,7 @@ gem "google-api-client", "~> 0.36" # Client for accessing Google APIs
 gem "honeybadger", "~> 4.5" # Used for tracking application errors
 gem "honeycomb-beeline", "~> 1.3.0" # Monitoring and Observability gem
 gem "html_truncator", "~> 0.4" # Truncate an HTML string properly
-gem "htmlentities", "~> 4.3", ">= 4.3.4"
+gem "htmlentities", "~> 4.3", ">= 4.3.4" # A module for encoding and decoding (X)HTML entities
 gem "httparty", "~> 0.17" # Makes http fun! Also, makes consuming restful web services dead easy
 gem "inline_svg", "~> 1.6" # Embed SVG documents in your Rails views and style them with CSS
 gem "jbuilder", "~> 2.9" # Create JSON structures via a Builder-style DSL

Gemfile.lock

@@ -891,7 +891,7 @@ DEPENDENCIES
   delayed_job_web (~> 1.4)
   derailed_benchmarks (~> 1.4)
   devise (~> 4.7)
-  dogstatsd-ruby
+  dogstatsd-ruby (~> 4.5)
   doorkeeper (~> 5.2)
   draper (~> 3.1)
   dry-struct (~> 1.2)