config: document includeIf conditions consistently
When 399b1984 (config: include file if remote URL matches a glob, 2022-01-18) added the 'hasconfig:remote.*.url:<URL>' condition to be used in the "includeIf.<condition>.path" configuration, the keyword was added with an extra colon in the documentation. The section that documents these condition begins with this preamble: The condition starts with a keyword followed by a colon and some data whose format and meaning depends on the keyword. Supported keywords are: which makes it clear that the colon that comes between the condition keyword (e.g. "gitdir") and the parameter (aka "some data") is not a part of the keyword. Lose the extra colon. Also rewrite description of all keywords to clarify that "some data" does not directly follow "keyword", and the colon is not a part of keyword. Signed-off-by: Junio C Hamano <gitster@pobox.com>