[bug] empty yml fields breaks build

[100ideas]

see #256 (comment)

---

The build failures on netlify seem to have been caused by the jekyll-algolia plugin getting empty _geoloc.lat or _geoloc.lng fields on an entry (see bottom of this build log).

3:47:32 AM: [jekyll-algolia] Error:                                                          
3:47:32 AM: 400: Cannot POST to https://ITI5JHZJM9.algolia.net/1/indexes/*/batch:            
3:47:32 AM: {"message":"_geoloc.lat or _geoloc.lng attributes cannot be null near line:1     
3:47:32 AM: column:13786","status":400} (400)  

I think this file was the problem:

• https://github.com/DIYbiosphere/sphere/blob/415dbedcca4b442a8f766c57878237954a23ec1d/_startups/CellEleven/CellEleven.md

I removed the empty fields and the build succeeded:

• 120bc1a
• https://app.netlify.com/sites/diybiosphere/deploys/5dad8ddb4a152e00086db198

now lets see if merging staging to master results in a good build...

---

I just mreged staging into master #272 and it seems to have worked.

https://app.netlify.com/sites/diybiosphere/deploys/5dad8fefc3371300081a40a1

so, going forward, just comment out any empty fields in the yml frontmatter.

good

#BASIC INFO
title: Cell Eleven
subtitle: Democratized Biotech
type-org: startup
#LOCATION
# address: # street and number
city: Philadelphia
state: Pennsylvania
postcode: 19135
country: United States
# _geoloc: # Geolocation coordinates for mapping
#  lat: # latitude number
#  lng: # longitude number
---

bad

---
#BASIC INFO
title: Cell Eleven
subtitle: Democratized Biotech
type-org: startup
#LOCATION
address: 
city: Philadelphia
state: Pennsylvania
postcode: 19135
country: United States
_geoloc: # Geolocation coordinates for mapping
  lat: # WARNING THIS IS BLANK AND WILL BREAK BUILD # latitude number
  lng: # WARNING THIS IS BLANK AND WILL BREAK BUILD # longitude number
---

[danwchan]

I think some sort of sanity check implementation on the Netify side can be implemented to fix this issue moving forward