docs: fix typos

Author: herschel666

Diff for: 2019-04-03.md

@@ -38,7 +38,7 @@
 
 #### How to support speakers?
 
-- __(d)__ Create a knowledge base like a wiki and/or a list of links to helpful resources concerning prepearing & giving talks.
+- __(d)__ Create a knowledge base like a wiki and/or a list of links to helpful resources concerning preparing & giving talks.
 - __(a)__ Provide mentoring if it's feasible.
 - __(d)__ Provide opportunities for final rehearsals.
 - __(a)__ Consider involving not-yet-speakers into the process of preparing & giving a talk (including a joint presence on stage).
@@ -76,13 +76,13 @@
 - __(d)__ Have both, thematically mixed topics and specific topic meetups.
 - __(d)__ Break the ice and create relationships by doing some games / activities with the audience at the beginning of a meetup.
 - __(d)__ Allow short spontaneous presentations of "a cool npm module", "something I read in the past" or "some weird JS behaviour" etc through games like a fortune wheel (similar to Hamburgs Node.js meetups).
-- __(d)__ Allow audience to present real day-by-day problems and try to solve them in the group.
+- __(d)__ Allow the audience to present real day-by-day problems and try to solve them in the group.
 - __(d)__ Once in a while we could do a "cross-over" meetup with one of the other JS related meetups to expose a greater audience to our shared topics.
 
 #### Miscellaneous
 
 - __(d)__ Provide tech / presentation support for first-time speakers. (should be part of [Speaker Recruiting](#speaker-recruiting))
-- __(d)__ Advertise meetup communication channels (especially slack is not well known). (shouldbe part of [Meetup Organization](#meetup-organization))
+- __(d)__ Advertise meetup communication channels (especially Slack is not well known). (should be part of [Meetup Organization](#meetup-organization))
 
 ### Meetup Organization
 
@@ -92,7 +92,7 @@
 
 - Locations / Sponsorship
 
-  - __(i)__ Despite audience size (~100 people), finding meetup locations has never been ap problem.
+  - __(i)__ Despite audience size (~100 people), finding meetup locations has never been a problem.
   - __(d)__ Using meetup.com as primary communications channel for potential and actual sponsors appears to be the most appropriate solution.
   - __(a)__ Decide if we want to be more specific with regards to catering and general conditions of location sponsorship.
   - __(a)__ Decide if we want to introduce speaker sponsorships (i.e. speaker accomodation and travel).