add rvmrc and rbenv config files to git ignore
Fix grammar mistakes
A few more grammar fixes
Add metadata service validation step

The default BOSH stemcell relies on the OpenStack Metadata API, but this is not found in the documentation.  This commit adds it in as another step to validate one's OpenStack.
Fix layout.erb to refelect changes needed for migration to doc.cloudfoundry.org
Update layout.erb
updated license and notice file
adding sample bodies, curl commands

[#62358902]
Create separate page for general info about adding service brokers

- populate it with content from the github service broker readme and from writing-service.html
- add links on architecture/services/index to the new "adding service brokers" page and the example (github) service broker
- include both cf and gcf commands on these pages
add "developing a service broker" section to services/index page
Add "Developing a service broker" section on services index page

and add sections about listing and removing brokers to "managing service brokers" page
added services v2.1 api page

renamed writing-service -> api-v2.0

added a redirect page for the missing page

[#61758830]

Conflicts:
	source/docs/running/architecture/services/writing-service.html.md.erb
Service Broker API 2.1 doc updates. [#61758830]
Merge pull request #230 from rogerluo410/master

updated license and notice file
new image for writing a v2 service [#62925866]
Add anchors to new headings in services/index.html

- minor edits in writing-service.html
merging PR
added services v2.1 api page

renamed writing-service -> api-v2.0

added a redirect page for the missing page

[#61758830]

Conflicts:
	source/docs/running/architecture/services/writing-service.html.md.erb
Service Broker API 2.1 doc updates. [#61758830]
Merge branch 'api21' of github.com:cloudfoundry/cf-docs into api21