OTEL Processing Rules for source template

[sumoanema]

…ate are in beta release).

Purpose of this pull request

This include details for include and exclude filter processing rules for logs and metrics which can be used for OTRM source template (Beta released) using otel collector.

Select the type of change

• Minor Changes - Typos, formatting, slight revisions
• Update Content - Revisions, updating sections
• New Content - New features, sections, pages, tutorials
• Site and Tools - .clabot, version updates, maintenance, dependencies, new packages for the site (Docusaurus, Gatsby, React, etc.)

Ticket (if applicable)

https://sumologic.atlassian.net/browse/SUMO-231512
https://sumologic.atlassian.net/browse/SUMO-239785

[jpipkin1]

@sumoanema, I have a few suggestions.

I also went ahead and made some updates myself (see commits "Update metric filter examples section" and "Add cards to index page").

Let me know if you have any questions.

[jpipkin1]

@kimsauce, my apologies for adding "-otel" to the end of the file names earlier. I hope I didn't make too much trouble by doing that.

[jpipkin1]

@sumoanema, could you add the relevant Jira ticket number in the PR description?

Is this PR related to these tickets?
SUMO-231512
SUMO-231229

[kimsauce]

@kimsauce, my apologies for adding "-otel" to the end of the file names earlier. I hope I didn't make too much trouble by doing that.

Oh, I didn't even notice. I thought it was part of the initial commit. I removed it because the URL already contains the otel keyword (/opentelemetry-collector). Long URLs, while they don't ding SEO, aren't a great user experience.

[sumoanema]

@sumoanema, could you add the relevant Jira ticket number in the PR description?

Is this PR related to these tickets? SUMO-231512 SUMO-231229

@jpipkin1 have added relevant jira to the PR