Add Glossary terms and fix some links (#557)
Add Glossary terms and fix some links (#557)

* add algo env defs and commit def; fix some links

* fix typo

* remove extra dd tag

* add link

* add def for model deployment

* improve wording

* fix typo

* add constellation link to some terms

* remove extra space
algorithmiaio/dev-center,algorithmiaio/dev-center,algorithmiaio/dev-center,algorithmiaio/dev-center